Mersenne ECM top factors

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M2220961 has a factor: 17660600855152309232254049999 (93.835 bits)
M3499679 has a factor: 8018668918849449557255457401 (92.695 bits)
M2542913 has a factor: 4181909840883774465563248441 (91.756 bits)
M3466651 has a factor: 3605538490708191726431753753 (91.542 bits)
M2338607 has a factor: 1686145644777001248533625263 (90.446 bits)
M3545051 has a factor: 828202579622065977471996263 (89.420 bits)
M3689617 has a factor: 754332122146734320605876193 (89.285 bits)
M2089223 has a factor: 635559716270491763154008359 (89.038 bits)
M3612607 has a factor: 247483627879981792928497753 (87.677 bits)
M2211817 has a factor: 114645679226112392180539159 (86.567 bits)
M2950093 has a factor: 95052978891302722284800167 (86.297 bits)
M2971559 has a factor: 93288050159209974529672151 (86.270 bits)
M3419921 has a factor: 63215108765073636623105863 (85.708 bits)
M2541697 has a factor: 47623895443960911418172023 (85.300 bits)
M3759901 has a factor: 19688692318853721117119471 (84.026 bits)
M3138403 has a factor: 15606698516721199567982737 (83.690 bits)
M3538979 has a factor: 8414766099538585248164567 (82.799 bits)
M2359603 has a factor: 7814470381701562759568639 (82.692 bits)
M3600221 has a factor: 3582970966509793547229311 (81.567 bits)
M2065829 has a factor: 3412555668708532024909457 (81.497 bits)
M3625397 has a factor: 2491646227444832439812927 (81.043 bits)
M3062317 has a factor: 1425222588186131975468113 (80.237 bits)
M2692891 has a factor: 1329286448844516402962639 (80.137 bits)
M3561253 has a factor: 1178303944981483505907497 (79.963 bits)
M3501467 has a factor: 1153716840118075170795623 (79.933 bits)
M3662177 has a factor: 1123547089157953884585433 (79.894 bits)
M2863493 has a factor: 1121929644685774311683609 (79.892 bits)
M3423697 has a factor: 882747073355977613491663 (79.546 bits)
M2477213 has a factor: 716309283364393702580503 (79.245 bits)
M2817421 has a factor: 665547649852780673970143 (79.139 bits)
M2280287 has a factor: 591750821246330361859921 (78.969 bits)
M2134507 has a factor: 423988538165520664528943 (78.488 bits)
M2485649 has a factor: 375906707694585052113529 (78.315 bits)
M3450593 has a factor: 373169996182993917098039 (78.304 bits)
M2844197 has a factor: 355037801196445918645649 (78.232 bits)
M3461099 has a factor: 268996883125763533002839 (77.832 bits)
M3582361 has a factor: 264854096938989329773399 (77.810 bits)
M2335877 has a factor: 257826571304083431905159 (77.771 bits)
M3583067 has a factor: 214294147246903348564033 (77.504 bits)
M3389521 has a factor: 141511903210533110842151 (76.905 bits)
M3050371 has a factor: 105145408050994386445847 (76.477 bits)
M2728631 has a factor: 104110590605608671806263 (76.462 bits)
M2611813 has a factor: 97405005007147915913729 (76.366 bits)
M3121333 has a factor: 86562964671410808227209 (76.196 bits)
M2651581 has a factor: 66380462155794807523409 (75.813 bits)
M2634461 has a factor: 53191371602967958729991 (75.494 bits)
M3468329 has a factor: 42469434658443659866393 (75.169 bits)
M3754259 has a factor: 41968023079268567115719 (75.152 bits)
M2035093 has a factor: 41099992296433922620871 (75.122 bits)
M3107831 has a factor: 38103302307066921530351 (75.012 bits)
M2371087 has a factor: 37437664300950981849487 (74.987 bits)
M3580669 has a factor: 32167069585215254252441 (74.768 bits)
M2194663 has a factor: 29658848633696857214881 (74.651 bits)
M3666253 has a factor: 27128564212677881199959 (74.522 bits)
M2511143 has a factor: 25062383129760159653023 (74.408 bits)
M3312347 has a factor: 18319257848833437049919 (73.956 bits)
M3259561 has a factor: 17446446998699419901183 (73.885 bits)
M2794907 has a factor: 17323561583604841890239 (73.875 bits)
M3288451 has a factor: 16130931332151403865753 (73.772 bits)
M2615983 has a factor: 15564385503568479602009 (73.721 bits)
M2346821 has a factor: 14513629696208729645311 (73.620 bits)
M3668087 has a factor: 12825232620669744858607 (73.441 bits)
M3267001 has a factor: 10099745512905463502071 (73.097 bits)
M2244611 has a factor: 9125966192726409741353 (72.950 bits)
M2992973 has a factor: 7453131443781634559303 (72.658 bits)
M2783959 has a factor: 6824285147143053267281 (72.531 bits)
M2730797 has a factor: 6379118855163955209209 (72.434 bits)
M3003167 has a factor: 6337789080921638058319 (72.424 bits)
M3632719 has a factor: 4936337103134439629177 (72.064 bits)
M2645549 has a factor: 4844684264844985198769 (72.037 bits)
M2784653 has a factor: 4354295600273625181951 (71.883 bits)
M3736367 has a factor: 3480165449649403212479 (71.560 bits)
M3747847 has a factor: 3223925886224142478529 (71.449 bits)
M3615581 has a factor: 2329746233149297162943 (70.981 bits)
M3750631 has a factor: 1805675568540014222599 (70.613 bits)
M3083209 has a factor: 1534246684536529067497 (70.378 bits)
M3446789 has a factor: 1496504320252172969993 (70.342 bits)
M3745199 has a factor: 1410636413178304495297 (70.257 bits)
M3071909 has a factor: 1382379478055231735951 (70.228 bits)
M2727793 has a factor: 1329651252680703272449 (70.172 bits)
M3168031 has a factor: 1283680016377135388239 (70.121 bits)
M3286951 has a factor: 972762554483363938009 (69.721 bits)
M3431903 has a factor: 961563081779003590633 (69.704 bits)
M3396469 has a factor: 871772615194510172519 (69.563 bits)
M3388687 has a factor: 734444631756952972319 (69.315 bits)
M3466349 has a factor: 618794381046223596761 (69.068 bits)
M3381149 has a factor: 617759535111518584823 (69.066 bits)
M2693213 has a factor: 503917727376416917009 (68.772 bits)
M3296497 has a factor: 497089280465944803457 (68.752 bits)

For copy-paste to forum:

[M]M2220961[/M] has a 93.835-bit (29-digit) factor: [url=https://www.mersenne.ca/M2220961]17660600855152309232254049999[/url] (ECM,B1=50000,B2=6750000,Sigma=4857160644336606)
[M]M3499679[/M] has a 92.695-bit (28-digit) factor: [url=https://www.mersenne.ca/M3499679]8018668918849449557255457401[/url] (ECM,B1=50000,B2=6800000,Sigma=3567262130497212)
[M]M2542913[/M] has a 91.756-bit (28-digit) factor: [url=https://www.mersenne.ca/M2542913]4181909840883774465563248441[/url] (ECM,B1=50000,B2=6750000,Sigma=6310915476541309)
[M]M3466651[/M] has a 91.542-bit (28-digit) factor: [url=https://www.mersenne.ca/M3466651]3605538490708191726431753753[/url] (ECM,B1=50000,B2=6700000,Sigma=5850078381205028)
[M]M2338607[/M] has a 90.446-bit (28-digit) factor: [url=https://www.mersenne.ca/M2338607]1686145644777001248533625263[/url] (ECM,B1=50000,B2=5100000,Sigma=259019075764266)
[M]M3545051[/M] has a 89.420-bit (27-digit) factor: [url=https://www.mersenne.ca/M3545051]828202579622065977471996263[/url] (ECM,B1=50000,B2=6800000,Sigma=4780522343420582)
[M]M3689617[/M] has a 89.285-bit (27-digit) factor: [url=https://www.mersenne.ca/M3689617]754332122146734320605876193[/url] (ECM,B1=50000,B2=6800000,Sigma=3542491313412595)
[M]M2089223[/M] has a 89.038-bit (27-digit) factor: [url=https://www.mersenne.ca/M2089223]635559716270491763154008359[/url] (ECM,B1=50000,B2=6700000,Sigma=6268922563134828)
[M]M3612607[/M] has a 87.677-bit (27-digit) factor: [url=https://www.mersenne.ca/M3612607]247483627879981792928497753[/url] (ECM,B1=50000,B2=6300000,Sigma=5125038545091088)
[M]M2211817[/M] has a 86.567-bit (27-digit) factor: [url=https://www.mersenne.ca/M2211817]114645679226112392180539159[/url] (ECM,B1=50000,B2=5150000,Sigma=4218323919282280)
[M]M2950093[/M] has a 86.297-bit (26-digit) factor: [url=https://www.mersenne.ca/M2950093]95052978891302722284800167[/url] (ECM,B1=50000,B2=6750000,Sigma=6335737165259340)
[M]M2971559[/M] has a 86.270-bit (26-digit) factor: [url=https://www.mersenne.ca/M2971559]93288050159209974529672151[/url] (ECM,B1=50000,B2=6350000,Sigma=5647951741497183)
[M]M3419921[/M] has a 85.708-bit (26-digit) factor: [url=https://www.mersenne.ca/M3419921]63215108765073636623105863[/url] (ECM,B1=50000,B2=6300000,Sigma=7310940259077693)
[M]M2541697[/M] has a 85.300-bit (26-digit) factor: [url=https://www.mersenne.ca/M2541697]47623895443960911418172023[/url] (ECM,B1=50000,B2=6750000,Sigma=4237103597455632)
[M]M3759901[/M] has a 84.026-bit (26-digit) factor: [url=https://www.mersenne.ca/M3759901]19688692318853721117119471[/url] (ECM,B1=50000,B2=6700000,Sigma=7704708816029906)
[M]M3138403[/M] has a 83.690-bit (26-digit) factor: [url=https://www.mersenne.ca/M3138403]15606698516721199567982737[/url] (ECM,B1=50000,B2=6750000,Sigma=2078156725228366)
[M]M3538979[/M] has a 82.799-bit (25-digit) factor: [url=https://www.mersenne.ca/M3538979]8414766099538585248164567[/url] (ECM,B1=50000,B2=6300000,Sigma=6986070508573336)
[M]M2359603[/M] has a 82.692-bit (25-digit) factor: [url=https://www.mersenne.ca/M2359603]7814470381701562759568639[/url] (ECM,B1=50000,B2=6200000,Sigma=6509673339870054)
[M]M3600221[/M] has a 81.567-bit (25-digit) factor: [url=https://www.mersenne.ca/M3600221]3582970966509793547229311[/url] (ECM,B1=50000,B2=6750000,Sigma=5481615753350187)
[M]M2065829[/M] has a 81.497-bit (25-digit) factor: [url=https://www.mersenne.ca/M2065829]3412555668708532024909457[/url] (ECM,B1=50000,B2=5150000,Sigma=466410328931090)
[M]M3625397[/M] has a 81.043-bit (25-digit) factor: [url=https://www.mersenne.ca/M3625397]2491646227444832439812927[/url] (ECM,B1=50000,B2=6750000,Sigma=3710534962811888)
[M]M3062317[/M] has a 80.237-bit (25-digit) factor: [url=https://www.mersenne.ca/M3062317]1425222588186131975468113[/url] (ECM,B1=50000,B2=4800000,Sigma=7730719991103790)
[M]M2692891[/M] has a 80.137-bit (25-digit) factor: [url=https://www.mersenne.ca/M2692891]1329286448844516402962639[/url] (ECM,B1=50000,B2=5000000,Sigma=8518314111194887)
[M]M3561253[/M] has a 79.963-bit (25-digit) factor: [url=https://www.mersenne.ca/M3561253]1178303944981483505907497[/url] (ECM,B1=50000,B2=6800000,Sigma=3861495507548066)
[M]M3501467[/M] has a 79.933-bit (25-digit) factor: [url=https://www.mersenne.ca/M3501467]1153716840118075170795623[/url] (ECM,B1=50000,B2=6700000,Sigma=426773959775608)
[M]M3662177[/M] has a 79.894-bit (25-digit) factor: [url=https://www.mersenne.ca/M3662177]1123547089157953884585433[/url] (ECM,B1=50000,B2=6800000,Sigma=3203927675369963)
[M]M2863493[/M] has a 79.892-bit (25-digit) factor: [url=https://www.mersenne.ca/M2863493]1121929644685774311683609[/url] (ECM,B1=50000,B2=6750000,Sigma=4514364600141809)
[M]M3423697[/M] has a 79.546-bit (24-digit) factor: [url=https://www.mersenne.ca/M3423697]882747073355977613491663[/url] (ECM,B1=50000,B2=6750000,Sigma=8590820570616401)
[M]M2477213[/M] has a 79.245-bit (24-digit) factor: [url=https://www.mersenne.ca/M2477213]716309283364393702580503[/url] (ECM,B1=50000,B2=5150000,Sigma=3008421939098261)
[M]M2817421[/M] has a 79.139-bit (24-digit) factor: [url=https://www.mersenne.ca/M2817421]665547649852780673970143[/url] (ECM,B1=50000,B2=5000000,Sigma=3050360735420129)
[M]M2280287[/M] has a 78.969-bit (24-digit) factor: [url=https://www.mersenne.ca/M2280287]591750821246330361859921[/url] (ECM,B1=50000,B2=6750000,Sigma=1494788370451611)
[M]M2134507[/M] has a 78.488-bit (24-digit) factor: [url=https://www.mersenne.ca/M2134507]423988538165520664528943[/url] (ECM,B1=50000,B2=6450000,Sigma=7626453518310400)
[M]M2485649[/M] has a 78.315-bit (24-digit) factor: [url=https://www.mersenne.ca/M2485649]375906707694585052113529[/url] (ECM,B1=50000,B2=5150000,Sigma=3663971301379592)
[M]M3450593[/M] has a 78.304-bit (24-digit) factor: [url=https://www.mersenne.ca/M3450593]373169996182993917098039[/url] (ECM,B1=50000,B2=6800000,Sigma=5949249494599290)
[M]M2844197[/M] has a 78.232-bit (24-digit) factor: [url=https://www.mersenne.ca/M2844197]355037801196445918645649[/url] (ECM,B1=50000,B2=6650000,Sigma=4392908416482829)
[M]M3461099[/M] has a 77.832-bit (24-digit) factor: [url=https://www.mersenne.ca/M3461099]268996883125763533002839[/url] (ECM,B1=50000,B2=6700000,Sigma=1476807936763963)
[M]M3582361[/M] has a 77.810-bit (24-digit) factor: [url=https://www.mersenne.ca/M3582361]264854096938989329773399[/url] (ECM,B1=50000,B2=6750000,Sigma=886690582541989)
[M]M2335877[/M] has a 77.771-bit (24-digit) factor: [url=https://www.mersenne.ca/M2335877]257826571304083431905159[/url] (ECM,B1=50000,B2=5200000,Sigma=519660519257648)
[M]M3583067[/M] has a 77.504-bit (24-digit) factor: [url=https://www.mersenne.ca/M3583067]214294147246903348564033[/url] (ECM,B1=50000,B2=4700000,Sigma=223850552965552)
[M]M3389521[/M] has a 76.905-bit (24-digit) factor: [url=https://www.mersenne.ca/M3389521]141511903210533110842151[/url] (ECM,B1=50000,B2=6800000,Sigma=8456935699089397)
[M]M3050371[/M] has a 76.477-bit (24-digit) factor: [url=https://www.mersenne.ca/M3050371]105145408050994386445847[/url] (ECM,B1=50000,B2=6350000,Sigma=3045917722743274)
[M]M2728631[/M] has a 76.462-bit (24-digit) factor: [url=https://www.mersenne.ca/M2728631]104110590605608671806263[/url] (ECM,B1=50000,B2=6750000,Sigma=8755489532565926)
[M]M2611813[/M] has a 76.366-bit (23-digit) factor: [url=https://www.mersenne.ca/M2611813]97405005007147915913729[/url] (ECM,B1=50000,B2=6750000,Sigma=373787055024223)
[M]M3121333[/M] has a 76.196-bit (23-digit) factor: [url=https://www.mersenne.ca/M3121333]86562964671410808227209[/url] (ECM,B1=50000,B2=6700000,Sigma=4269231168679302)
[M]M2651581[/M] has a 75.813-bit (23-digit) factor: [url=https://www.mersenne.ca/M2651581]66380462155794807523409[/url] (ECM,B1=50000,B2=6750000,Sigma=7834500562006340)
[M]M2634461[/M] has a 75.494-bit (23-digit) factor: [url=https://www.mersenne.ca/M2634461]53191371602967958729991[/url] (ECM,B1=50000,B2=5000000,Sigma=8158476653346242)
[M]M3468329[/M] has a 75.169-bit (23-digit) factor: [url=https://www.mersenne.ca/M3468329]42469434658443659866393[/url] (ECM,B1=50000,B2=4700000,Sigma=7358200664693827)
[M]M3754259[/M] has a 75.152-bit (23-digit) factor: [url=https://www.mersenne.ca/M3754259]41968023079268567115719[/url] (ECM,B1=50000,B2=6700000,Sigma=1259341485922657)
[M]M2035093[/M] has a 75.122-bit (23-digit) factor: [url=https://www.mersenne.ca/M2035093]41099992296433922620871[/url] (ECM,B1=50000,B2=6750000,Sigma=5693297910992226)
[M]M3107831[/M] has a 75.012-bit (23-digit) factor: [url=https://www.mersenne.ca/M3107831]38103302307066921530351[/url] (ECM,B1=50000,B2=6750000,Sigma=5069109324735172)
[M]M2371087[/M] has a 74.987-bit (23-digit) factor: [url=https://www.mersenne.ca/M2371087]37437664300950981849487[/url] (ECM,B1=50000,B2=5200000,Sigma=4206889463992095)
[M]M3580669[/M] has a 74.768-bit (23-digit) factor: [url=https://www.mersenne.ca/M3580669]32167069585215254252441[/url] (ECM,B1=50000,B2=6750000,Sigma=3669549781865729)
[M]M2194663[/M] has a 74.651-bit (23-digit) factor: [url=https://www.mersenne.ca/M2194663]29658848633696857214881[/url] (ECM,B1=50000,B2=5150000,Sigma=7689097102509743)
[M]M3666253[/M] has a 74.522-bit (23-digit) factor: [url=https://www.mersenne.ca/M3666253]27128564212677881199959[/url] (ECM,B1=50000,B2=6800000,Sigma=3380460560617966)
[M]M2511143[/M] has a 74.408-bit (23-digit) factor: [url=https://www.mersenne.ca/M2511143]25062383129760159653023[/url] (ECM,B1=50000,B2=5150000,Sigma=6511174266301545)
[M]M3312347[/M] has a 73.956-bit (23-digit) factor: [url=https://www.mersenne.ca/M3312347]18319257848833437049919[/url] (ECM,B1=50000,B2=4800000,Sigma=6192354059099654)
[M]M3259561[/M] has a 73.885-bit (23-digit) factor: [url=https://www.mersenne.ca/M3259561]17446446998699419901183[/url] (ECM,B1=50000,B2=6700000,Sigma=2809465844876612)
[M]M2794907[/M] has a 73.875-bit (23-digit) factor: [url=https://www.mersenne.ca/M2794907]17323561583604841890239[/url] (ECM,B1=50000,B2=5850000,Sigma=922653783900334)
[M]M3288451[/M] has a 73.772-bit (23-digit) factor: [url=https://www.mersenne.ca/M3288451]16130931332151403865753[/url] (ECM,Sigma=851262792031280)
[M]M2615983[/M] has a 73.721-bit (23-digit) factor: [url=https://www.mersenne.ca/M2615983]15564385503568479602009[/url] (ECM,B1=50000,B2=6750000,Sigma=416419564031025)
[M]M2346821[/M] has a 73.620-bit (23-digit) factor: [url=https://www.mersenne.ca/M2346821]14513629696208729645311[/url] (ECM,B1=50000,B2=5200000,Sigma=230568190818762)
[M]M3668087[/M] has a 73.441-bit (23-digit) factor: [url=https://www.mersenne.ca/M3668087]12825232620669744858607[/url] (ECM,B1=50000,B2=6800000,Sigma=7134770694805538)
[M]M3267001[/M] has a 73.097-bit (23-digit) factor: [url=https://www.mersenne.ca/M3267001]10099745512905463502071[/url] (ECM,B1=50000,B2=6800000,Sigma=1950716995818368)
[M]M2244611[/M] has a 72.950-bit (22-digit) factor: [url=https://www.mersenne.ca/M2244611]9125966192726409741353[/url] (ECM,B1=50000,B2=5150000,Sigma=4850959270476062)
[M]M2992973[/M] has a 72.658-bit (22-digit) factor: [url=https://www.mersenne.ca/M2992973]7453131443781634559303[/url] (ECM,B1=50000,B2=6700000,Sigma=4451233675175446)
[M]M2783959[/M] has a 72.531-bit (22-digit) factor: [url=https://www.mersenne.ca/M2783959]6824285147143053267281[/url] (ECM,B1=50000,B2=6450000,Sigma=891589156428803)
[M]M2730797[/M] has a 72.434-bit (22-digit) factor: [url=https://www.mersenne.ca/M2730797]6379118855163955209209[/url] (ECM,B1=50000,B2=5200000,Sigma=8789722556445422)
[M]M3003167[/M] has a 72.424-bit (22-digit) factor: [url=https://www.mersenne.ca/M3003167]6337789080921638058319[/url] (ECM,B1=50000,B2=6750000,Sigma=2440432452138166)
[M]M3632719[/M] has a 72.064-bit (22-digit) factor: [url=https://www.mersenne.ca/M3632719]4936337103134439629177[/url] (ECM,B1=50000,B2=6750000,Sigma=5032120389153105)
[M]M2645549[/M] has a 72.037-bit (22-digit) factor: [url=https://www.mersenne.ca/M2645549]4844684264844985198769[/url] (ECM,B1=50000,B2=5000000,Sigma=7560012610967701)
[M]M2784653[/M] has a 71.883-bit (22-digit) factor: [url=https://www.mersenne.ca/M2784653]4354295600273625181951[/url] (ECM,B1=50000,B2=5000000,Sigma=1355503503314325)
[M]M3736367[/M] has a 71.560-bit (22-digit) factor: [url=https://www.mersenne.ca/M3736367]3480165449649403212479[/url] (ECM,B1=50000,B2=6300000,Sigma=6349672117275472)
[M]M3747847[/M] has a 71.449-bit (22-digit) factor: [url=https://www.mersenne.ca/M3747847]3223925886224142478529[/url] (ECM,B1=50000,B2=6800000,Sigma=6576421677581387)
[M]M3615581[/M] has a 70.981-bit (22-digit) factor: [url=https://www.mersenne.ca/M3615581]2329746233149297162943[/url] (ECM,B1=50000,B2=6800000,Sigma=5480608282862225)
[M]M3750631[/M] has a 70.613-bit (22-digit) factor: [url=https://www.mersenne.ca/M3750631]1805675568540014222599[/url] (ECM,B1=50000,B2=6700000,Sigma=2826731084641734)
[M]M3083209[/M] has a 70.378-bit (22-digit) factor: [url=https://www.mersenne.ca/M3083209]1534246684536529067497[/url] (ECM,B1=50000,B2=6700000,Sigma=4687795312476454)
[M]M3446789[/M] has a 70.342-bit (22-digit) factor: [url=https://www.mersenne.ca/M3446789]1496504320252172969993[/url] (ECM,B1=50000,B2=6700000,Sigma=9043381615564440)
[M]M3745199[/M] has a 70.257-bit (22-digit) factor: [url=https://www.mersenne.ca/M3745199]1410636413178304495297[/url] (ECM,B1=50000,B2=6700000,Sigma=8659970983866798)
[M]M3071909[/M] has a 70.228-bit (22-digit) factor: [url=https://www.mersenne.ca/M3071909]1382379478055231735951[/url] (ECM,Sigma=6278102690790371)
[M]M2727793[/M] has a 70.172-bit (22-digit) factor: [url=https://www.mersenne.ca/M2727793]1329651252680703272449[/url] (ECM,B1=50000,B2=6450000,Sigma=6167548004400060)
[M]M3168031[/M] has a 70.121-bit (22-digit) factor: [url=https://www.mersenne.ca/M3168031]1283680016377135388239[/url] (ECM,B1=50000,B2=6650000,Sigma=4890629373353316)
[M]M3286951[/M] has a 69.721-bit (21-digit) factor: [url=https://www.mersenne.ca/M3286951]972762554483363938009[/url] (ECM,B1=50000,B2=6750000,Sigma=3740824681328100)
[M]M3431903[/M] has a 69.704-bit (21-digit) factor: [url=https://www.mersenne.ca/M3431903]961563081779003590633[/url] (ECM,B1=50000,B2=6800000,Sigma=5020829555839804)
[M]M3396469[/M] has a 69.563-bit (21-digit) factor: [url=https://www.mersenne.ca/M3396469]871772615194510172519[/url] (ECM,B1=50000,B2=6750000,Sigma=4948253183925213)
[M]M3388687[/M] has a 69.315-bit (21-digit) factor: [url=https://www.mersenne.ca/M3388687]734444631756952972319[/url] (ECM,B1=50000,B2=6750000,Sigma=6909678234411970)
[M]M3466349[/M] has a 69.068-bit (21-digit) factor: [url=https://www.mersenne.ca/M3466349]618794381046223596761[/url] (ECM,B1=50000,B2=4700000,Sigma=5252787023668738)
[M]M3381149[/M] has a 69.066-bit (21-digit) factor: [url=https://www.mersenne.ca/M3381149]617759535111518584823[/url] (ECM,B1=50000,B2=6750000,Sigma=7649953883990798)
[M]M2693213[/M] has a 68.772-bit (21-digit) factor: [url=https://www.mersenne.ca/M2693213]503917727376416917009[/url] (ECM,B1=50000,B2=5000000,Sigma=8843123615324413)
[M]M3296497[/M] has a 68.752-bit (21-digit) factor: [url=https://www.mersenne.ca/M3296497]497089280465944803457[/url] (ECM,B1=50000,B2=6800000,Sigma=1365974797646493)

0M	<	10¹⁰	All tracked exponents
0M	<	2³²	GPU TF range
0M	<	1000M	PrimeNet range
0M	<	193M	low-PrimeNet, low-res
0M	<	385M	low-PrimeNet, high-res
50M	<	146M	PrimeNet wavefront

Biggest factors for kutens	nfs	ecm	p-1	p+1	any
Biggest factors (all users)	nfs	ecm	p-1	p+1	any
Recent factors (all users)	nfs	ecm	p-1	p+1	any
Search by user	nfs	ecm	p-1	p+1	any

Top ECM factors of Mersenne numbers

Top ECM factors of all time for kutens

#	User	Exponent	Factor	Digits	Bits ↓ *	Date
1	kutens	2220961	17660600855152309232254049999	29	93.835	2021-07-05
2	kutens	3499679	8018668918849449557255457401	28	92.695	2021-07-25
3	kutens	2542913	4181909840883774465563248441	28	91.756	2021-07-09
4	kutens	3466651	3605538490708191726431753753	28	91.542	2021-10-31
5	kutens	2338607	1686145644777001248533625263	28	90.446	2021-05-14
6	kutens	3545051	828202579622065977471996263	27	89.420	2021-07-12
7	kutens	3689617	754332122146734320605876193	27	89.285	2021-07-12
8	kutens	2089223	635559716270491763154008359	27	89.038	2021-10-17
9	kutens	3612607	247483627879981792928497753	27	87.677	2021-06-23
10	kutens	2211817	114645679226112392180539159	27	86.567	2021-06-02
11	kutens	2950093	95052978891302722284800167	26	86.297	2021-08-02
12	kutens	2971559	93288050159209974529672151	26	86.270	2021-06-28
13	kutens	3419921	63215108765073636623105863	26	85.708	2021-06-14
14	kutens	2541697	47623895443960911418172023	26	85.300	2021-07-30
15	kutens	3759901	19688692318853721117119471	26	84.026	2021-11-04
16	kutens	3138403	15606698516721199567982737	26	83.690	2021-06-23
17	kutens	3538979	8414766099538585248164567	25	82.799	2021-06-27
18	kutens	2359603	7814470381701562759568639	25	82.692	2021-07-25
19	kutens	3600221	3582970966509793547229311	25	81.567	2021-08-02
20	kutens	2065829	3412555668708532024909457	25	81.497	2021-06-14
21	kutens	3625397	2491646227444832439812927	25	81.043	2021-08-13
22	kutens	3062317	1425222588186131975468113	25	80.237	2021-05-18
23	kutens	2692891	1329286448844516402962639	25	80.137	2021-05-20
24	kutens	3561253	1178303944981483505907497	25	79.963	2021-07-07
25	kutens	3501467	1153716840118075170795623	25	79.933	2021-10-14
26	kutens	3662177	1123547089157953884585433	25	79.894	2021-06-28
27	kutens	2863493	1121929644685774311683609	25	79.892	2021-05-28
28	kutens	3423697	882747073355977613491663	24	79.546	2021-07-28
29	kutens	2477213	716309283364393702580503	24	79.245	2021-05-15
30	kutens	2817421	665547649852780673970143	24	79.139	2021-06-06
31	kutens	2280287	591750821246330361859921	24	78.969	2021-07-20
32	kutens	2134507	423988538165520664528943	24	78.488	2021-06-20
33	kutens	2485649	375906707694585052113529	24	78.315	2021-05-20
34	kutens	3450593	373169996182993917098039	24	78.304	2021-06-24
35	kutens	2844197	355037801196445918645649	24	78.232	2021-07-09
36	kutens	3461099	268996883125763533002839	24	77.832	2021-10-27
37	kutens	3582361	264854096938989329773399	24	77.810	2021-06-30
38	kutens	2335877	257826571304083431905159	24	77.771	2021-06-13
39	kutens	3583067	214294147246903348564033	24	77.504	2021-05-22
40	kutens	3389521	141511903210533110842151	24	76.905	2021-07-03
41	kutens	3050371	105145408050994386445847	24	76.477	2021-06-18
42	kutens	2728631	104110590605608671806263	24	76.462	2021-11-04
43	kutens	2611813	97405005007147915913729	23	76.366	2021-08-22
44	kutens	3121333	86562964671410808227209	23	76.196	2021-11-04
45	kutens	2651581	66380462155794807523409	23	75.813	2021-07-15
46	kutens	2634461	53191371602967958729991	23	75.494	2021-06-11
47	kutens	3468329	42469434658443659866393	23	75.169	2021-05-30
48	kutens	3754259	41968023079268567115719	23	75.152	2021-10-30
49	kutens	2035093	41099992296433922620871	23	75.122	2021-06-19
50	kutens	3107831	38103302307066921530351	23	75.012	2021-07-25
51	kutens	2371087	37437664300950981849487	23	74.987	2021-05-31
52	kutens	3580669	32167069585215254252441	23	74.768	2021-06-29
53	kutens	2194663	29658848633696857214881	23	74.651	2021-05-25
54	kutens	3666253	27128564212677881199959	23	74.522	2021-06-30
55	kutens	2511143	25062383129760159653023	23	74.408	2021-05-21
56	kutens	3312347	18319257848833437049919	23	73.956	2021-06-02
57	kutens	3259561	17446446998699419901183	23	73.885	2021-05-26
58	kutens	2794907	17323561583604841890239	23	73.875	2021-06-16
59	kutens	3288451	16130931332151403865753	23	73.772	2021-05-13
60	kutens	2615983	15564385503568479602009	23	73.721	2021-07-17
61	kutens	2346821	14513629696208729645311	23	73.620	2021-05-30
62	kutens	3668087	12825232620669744858607	23	73.441	2021-06-30
63	kutens	3267001	10099745512905463502071	23	73.097	2021-07-09
64	kutens	2244611	9125966192726409741353	22	72.950	2021-06-15
65	kutens	2992973	7453131443781634559303	22	72.658	2021-10-31
66	kutens	2783959	6824285147143053267281	22	72.531	2021-07-23
67	kutens	2730797	6379118855163955209209	22	72.434	2021-06-03
68	kutens	3003167	6337789080921638058319	22	72.424	2021-07-22
69	kutens	3632719	4936337103134439629177	22	72.064	2021-07-01
70	kutens	2645549	4844684264844985198769	22	72.037	2021-06-05
71	kutens	2784653	4354295600273625181951	22	71.883	2021-06-02
72	kutens	3736367	3480165449649403212479	22	71.560	2021-08-07
73	kutens	3747847	3223925886224142478529	22	71.449	2021-08-13
74	kutens	3615581	2329746233149297162943	22	70.981	2021-06-25
75	kutens	3750631	1805675568540014222599	22	70.613	2021-10-23
76	kutens	3083209	1534246684536529067497	22	70.378	2021-05-14
77	kutens	3446789	1496504320252172969993	22	70.342	2021-05-15
78	kutens	3745199	1410636413178304495297	22	70.257	2021-10-24
79	kutens	3071909	1382379478055231735951	22	70.228	2021-05-13
80	kutens	2727793	1329651252680703272449	22	70.172	2021-07-23
81	kutens	3168031	1283680016377135388239	22	70.121	2021-07-24
82	kutens	3286951	972762554483363938009	21	69.721	2021-08-09
83	kutens	3431903	961563081779003590633	21	69.704	2021-06-19
84	kutens	3396469	871772615194510172519	21	69.563	2021-07-06
85	kutens	3388687	734444631756952972319	21	69.315	2021-07-02
86	kutens	3466349	618794381046223596761	21	69.068	2021-05-14
87	kutens	3381149	617759535111518584823	21	69.066	2021-07-29
88	kutens	2693213	503917727376416917009	21	68.772	2021-06-02
89	kutens	3296497	497089280465944803457	21	68.752	2021-06-26