Mersenne ECM top factors

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M14173 has a factor: 5451595560230412055196637501309406085341593764073929 (171.865 bits)
M11027 has a factor: 288363872191768892050551279270150054945736765655279 (167.624 bits)
M2210233 has a factor: 113721004647423763582569111201841 (106.487 bits)
M2017579 has a factor: 156889145858844658447392754567 (96.986 bits)
M5559473 has a factor: 1975988685816809174474328457 (90.675 bits)
M359663 has a factor: 1191268844032775298128035241 (89.945 bits)
M2012221 has a factor: 589201317973605896661410039 (88.929 bits)
M358931 has a factor: 574681453385948143244980441 (88.893 bits)
M2018629 has a factor: 172902060883908125941586743 (87.160 bits)
M355933 has a factor: 148928192381021328006980719 (86.945 bits)
M15911447 has a factor: 122632558125216750633150871 (86.664 bits)
M11584981 has a factor: 42677991295299898103090113 (85.142 bits)
M5397863 has a factor: 36616091722259480779540793 (84.921 bits)
M5423741 has a factor: 22165102688632795916769113 (84.196 bits)
M2303599 has a factor: 8708119539618067243492177 (82.849 bits)
M5638247 has a factor: 2275815875836549137731671 (80.913 bits)
M3482021 has a factor: 1699184410843978033542569 (80.491 bits)
M2013329 has a factor: 1551291418228027677981041 (80.360 bits)
M8641807 has a factor: 1190742114436393608102017 (79.978 bits)
M17610811 has a factor: 787036718112210740056903 (79.381 bits)
M5453557 has a factor: 779628670204106978678279 (79.367 bits)
M3440609 has a factor: 578790043002501245675351 (78.937 bits)
M2108339 has a factor: 326909466647050250949121 (78.113 bits)
M5350843 has a factor: 232750662230454419529767 (77.623 bits)
M2018543 has a factor: 190035050462974566113113 (77.331 bits)
M5592469 has a factor: 177163607314053098230841 (77.229 bits)
M2010329 has a factor: 174078445645502436061241 (77.204 bits)
M357667 has a factor: 163252584473116537984129 (77.111 bits)
M2016587 has a factor: 150453697229388656457503 (76.994 bits)
M2307959 has a factor: 104017649731374211595599 (76.461 bits)
M3552433 has a factor: 103791035934650649470903 (76.458 bits)
M2101873 has a factor: 79468177728651611356361 (76.073 bits)
M2011111 has a factor: 52696645156114999338809 (75.480 bits)
M17256787 has a factor: 43608471359327145160471 (75.207 bits)
M2301281 has a factor: 42130660566024049962073 (75.157 bits)
M5573549 has a factor: 35388402713538178146103 (74.906 bits)
M3467759 has a factor: 34365275413059869084591 (74.863 bits)
M2017243 has a factor: 33547495401046142975143 (74.829 bits)
M2101553 has a factor: 28672250286998034959321 (74.602 bits)
M2101061 has a factor: 13967365986826654839991 (73.564 bits)
M10358351 has a factor: 10388418063319509904489 (73.137 bits)
M5624389 has a factor: 7791322261724897381209 (72.722 bits)
M5371543 has a factor: 7417499733794495829919 (72.651 bits)
M1531769 has a factor: 7385157270335579834471 (72.645 bits)
M3833009 has a factor: 6860490792869448265207 (72.539 bits)
M10319509 has a factor: 6663468677235716293529 (72.497 bits)
M2017397 has a factor: 6558252626807419223249 (72.474 bits)
M17241661 has a factor: 5893065745750418154847 (72.320 bits)
M4087403 has a factor: 5608162665617276215543 (72.248 bits)
M15945977 has a factor: 5591175795564224251447 (72.244 bits)
M3466139 has a factor: 5058780933180069124543 (72.099 bits)
M357593 has a factor: 3356454565574485522831 (71.507 bits)
M2011957 has a factor: 2995819168374884379599 (71.343 bits)
M11768521 has a factor: 2960548957163308040639 (71.326 bits)
M2101823 has a factor: 2888992043614839049969 (71.291 bits)
M2016967 has a factor: 2147244562392658380671 (70.863 bits)
M9774689 has a factor: 1782325907673048696617 (70.594 bits)
M8505547 has a factor: 1626059100099511021519 (70.462 bits)
M2014697 has a factor: 1221763703906377059007 (70.049 bits)
M3374467 has a factor: 1148888237608238623313 (69.961 bits)
M3526111 has a factor: 636644645903751757903 (69.109 bits)
M5575861 has a factor: 618723640194762039911 (69.068 bits)
M8712713 has a factor: 532817346388756112777 (68.852 bits)
M3495409 has a factor: 487880320910357815697 (68.725 bits)
M5466521 has a factor: 369702309257029918111 (68.325 bits)
M5479807 has a factor: 318326259707451798823 (68.109 bits)
M5578189 has a factor: 305618635361398323647 (68.050 bits)
M6351649 has a factor: 292269521189942677279 (67.986 bits)
M3678347 has a factor: 288743684346355272721 (67.968 bits)
M5504717 has a factor: 262462576364268890399 (67.831 bits)
M10315931 has a factor: 243499944582124221223 (67.722 bits)
M5561869 has a factor: 189340540128615566777 (67.360 bits)
M8433559 has a factor: 189242547772865109577 (67.359 bits)
M5594657 has a factor: 182930745355854589199 (67.310 bits)
M2407411 has a factor: 176124546292044121279 (67.255 bits)
M5560169 has a factor: 173947795999306161487 (67.237 bits)
M9975193 has a factor: 142523895195003953399 (66.950 bits)
M5485483 has a factor: 139509460233727229201 (66.919 bits)
M3027527 has a factor: 138857589350772761087 (66.912 bits)
M5277227 has a factor: 135225288628611558809 (66.874 bits)
M4999201 has a factor: 130844386059276234791 (66.826 bits)
M3378043 has a factor: 106040774367449916791 (66.523 bits)
M5383853 has a factor: 97585893456519781513 (66.403 bits)
M4112579 has a factor: 95685642674772479359 (66.375 bits)
M3439561 has a factor: 86668078763519228207 (66.232 bits)
M3577517 has a factor: 80171199736997937209 (66.120 bits)
M2852429 has a factor: 73653979990415780927 (65.997 bits)
M4865141 has a factor: 67556028396571159391 (65.873 bits)
M5477429 has a factor: 62400197354991930223 (65.758 bits)
M5378063 has a factor: 55425284831454618161 (65.587 bits)
M2538017 has a factor: 48646857116599875143 (65.399 bits)
M3374797 has a factor: 46326756180026303351 (65.328 bits)
M5593871 has a factor: 41678883614909565049 (65.176 bits)
M5428427 has a factor: 40552644928004392751 (65.136 bits)
M5011807 has a factor: 16925919895838667023 (63.876 bits)
M3381251 has a factor: 13012535728324526423 (63.497 bits)
M3459641 has a factor: 12439162888577892241 (63.432 bits)
M2990137 has a factor: 6250378164112199753 (62.439 bits)

For copy-paste to forum:

[M]M14173[/M] has a 171.865-bit (52-digit) factor: [url=https://www.mersenne.ca/M14173]5451595560230412055196637501309406085341593764073929[/url] (ECM,B1=44000000,B2=4400000000)
[M]M11027[/M] has a 167.624-bit (51-digit) factor: [url=https://www.mersenne.ca/M11027]288363872191768892050551279270150054945736765655279[/url] (ECM,B1=44000000,B2=4400000000)
[M]M2210233[/M] has a 106.487-bit (33-digit) factor: [url=https://www.mersenne.ca/M2210233]113721004647423763582569111201841[/url] (ECM,B1=50000,B2=5000000)
[M]M2017579[/M] has a 96.986-bit (30-digit) factor: [url=https://www.mersenne.ca/M2017579]156889145858844658447392754567[/url] (ECM,B1=50000,B2=5000000)
[M]M5559473[/M] has a 90.675-bit (28-digit) factor: [url=https://www.mersenne.ca/M5559473]1975988685816809174474328457[/url] (ECM)
[M]M359663[/M] has a 89.945-bit (28-digit) factor: [url=https://www.mersenne.ca/M359663]1191268844032775298128035241[/url] (ECM)
[M]M2012221[/M] has a 88.929-bit (27-digit) factor: [url=https://www.mersenne.ca/M2012221]589201317973605896661410039[/url] (ECM,B1=50000,B2=5000000)
[M]M358931[/M] has a 88.893-bit (27-digit) factor: [url=https://www.mersenne.ca/M358931]574681453385948143244980441[/url] (ECM)
[M]M2018629[/M] has a 87.160-bit (27-digit) factor: [url=https://www.mersenne.ca/M2018629]172902060883908125941586743[/url] (ECM,B1=50000,B2=5000000)
[M]M355933[/M] has a 86.945-bit (27-digit) factor: [url=https://www.mersenne.ca/M355933]148928192381021328006980719[/url] (ECM)
[M]M15911447[/M] has a 86.664-bit (27-digit) factor: [url=https://www.mersenne.ca/M15911447]122632558125216750633150871[/url] (ECM,B1=50000,B2=5000000)
[M]M11584981[/M] has a 85.142-bit (26-digit) factor: [url=https://www.mersenne.ca/M11584981]42677991295299898103090113[/url] (ECM,B1=50000,B2=5000000)
[M]M5397863[/M] has a 84.921-bit (26-digit) factor: [url=https://www.mersenne.ca/M5397863]36616091722259480779540793[/url] (ECM)
[M]M5423741[/M] has a 84.196-bit (26-digit) factor: [url=https://www.mersenne.ca/M5423741]22165102688632795916769113[/url] (ECM)
[M]M2303599[/M] has a 82.849-bit (25-digit) factor: [url=https://www.mersenne.ca/M2303599]8708119539618067243492177[/url] (ECM,B1=50000,B2=5000000)
[M]M5638247[/M] has a 80.913-bit (25-digit) factor: [url=https://www.mersenne.ca/M5638247]2275815875836549137731671[/url] (ECM)
[M]M3482021[/M] has a 80.491-bit (25-digit) factor: [url=https://www.mersenne.ca/M3482021]1699184410843978033542569[/url] (ECM,B1=50000,B2=5000000)
[M]M2013329[/M] has a 80.360-bit (25-digit) factor: [url=https://www.mersenne.ca/M2013329]1551291418228027677981041[/url] (ECM,B1=50000,B2=5000000)
[M]M8641807[/M] has a 79.978-bit (25-digit) factor: [url=https://www.mersenne.ca/M8641807]1190742114436393608102017[/url] (ECM)
[M]M17610811[/M] has a 79.381-bit (24-digit) factor: [url=https://www.mersenne.ca/M17610811]787036718112210740056903[/url] (ECM,B1=50000,B2=5000000)
[M]M5453557[/M] has a 79.367-bit (24-digit) factor: [url=https://www.mersenne.ca/M5453557]779628670204106978678279[/url] (ECM)
[M]M3440609[/M] has a 78.937-bit (24-digit) factor: [url=https://www.mersenne.ca/M3440609]578790043002501245675351[/url] (ECM,B1=50000,B2=5000000)
[M]M2108339[/M] has a 78.113-bit (24-digit) factor: [url=https://www.mersenne.ca/M2108339]326909466647050250949121[/url] (ECM,B1=50000,B2=5000000)
[M]M5350843[/M] has a 77.623-bit (24-digit) factor: [url=https://www.mersenne.ca/M5350843]232750662230454419529767[/url] (ECM)
[M]M2018543[/M] has a 77.331-bit (24-digit) factor: [url=https://www.mersenne.ca/M2018543]190035050462974566113113[/url] (ECM,B1=50000,B2=5000000)
[M]M5592469[/M] has a 77.229-bit (24-digit) factor: [url=https://www.mersenne.ca/M5592469]177163607314053098230841[/url] (ECM)
[M]M2010329[/M] has a 77.204-bit (24-digit) factor: [url=https://www.mersenne.ca/M2010329]174078445645502436061241[/url] (ECM,B1=50000,B2=5000000)
[M]M357667[/M] has a 77.111-bit (24-digit) factor: [url=https://www.mersenne.ca/M357667]163252584473116537984129[/url] (ECM)
[M]M2016587[/M] has a 76.994-bit (24-digit) factor: [url=https://www.mersenne.ca/M2016587]150453697229388656457503[/url] (ECM,B1=50000,B2=5000000)
[M]M2307959[/M] has a 76.461-bit (24-digit) factor: [url=https://www.mersenne.ca/M2307959]104017649731374211595599[/url] (ECM,B1=50000,B2=5000000)
[M]M3552433[/M] has a 76.458-bit (24-digit) factor: [url=https://www.mersenne.ca/M3552433]103791035934650649470903[/url] (ECM)
[M]M2101873[/M] has a 76.073-bit (23-digit) factor: [url=https://www.mersenne.ca/M2101873]79468177728651611356361[/url] (ECM,B1=50000,B2=5000000)
[M]M2011111[/M] has a 75.480-bit (23-digit) factor: [url=https://www.mersenne.ca/M2011111]52696645156114999338809[/url] (ECM,B1=50000,B2=5000000)
[M]M17256787[/M] has a 75.207-bit (23-digit) factor: [url=https://www.mersenne.ca/M17256787]43608471359327145160471[/url] (ECM,B1=50000,B2=5000000)
[M]M2301281[/M] has a 75.157-bit (23-digit) factor: [url=https://www.mersenne.ca/M2301281]42130660566024049962073[/url] (ECM,B1=50000,B2=5000000)
[M]M5573549[/M] has a 74.906-bit (23-digit) factor: [url=https://www.mersenne.ca/M5573549]35388402713538178146103[/url] (ECM)
[M]M3467759[/M] has a 74.863-bit (23-digit) factor: [url=https://www.mersenne.ca/M3467759]34365275413059869084591[/url] (ECM)
[M]M2017243[/M] has a 74.829-bit (23-digit) factor: [url=https://www.mersenne.ca/M2017243]33547495401046142975143[/url] (ECM,B1=50000,B2=5000000)
[M]M2101553[/M] has a 74.602-bit (23-digit) factor: [url=https://www.mersenne.ca/M2101553]28672250286998034959321[/url] (ECM,B1=50000,B2=5000000)
[M]M2101061[/M] has a 73.564-bit (23-digit) factor: [url=https://www.mersenne.ca/M2101061]13967365986826654839991[/url] (ECM,B1=50000,B2=5000000)
[M]M10358351[/M] has a 73.137-bit (23-digit) factor: [url=https://www.mersenne.ca/M10358351]10388418063319509904489[/url] (ECM,B1=50000,B2=5000000)
[M]M5624389[/M] has a 72.722-bit (22-digit) factor: [url=https://www.mersenne.ca/M5624389]7791322261724897381209[/url] (ECM)
[M]M5371543[/M] has a 72.651-bit (22-digit) factor: [url=https://www.mersenne.ca/M5371543]7417499733794495829919[/url] (ECM)
[M]M1531769[/M] has a 72.645-bit (22-digit) factor: [url=https://www.mersenne.ca/M1531769]7385157270335579834471[/url] (ECM)
[M]M3833009[/M] has a 72.539-bit (22-digit) factor: [url=https://www.mersenne.ca/M3833009]6860490792869448265207[/url] (ECM,B1=50000,B2=5000000)
[M]M10319509[/M] has a 72.497-bit (22-digit) factor: [url=https://www.mersenne.ca/M10319509]6663468677235716293529[/url] (ECM,B1=50000,B2=5000000)
[M]M2017397[/M] has a 72.474-bit (22-digit) factor: [url=https://www.mersenne.ca/M2017397]6558252626807419223249[/url] (ECM,B1=50000,B2=5000000)
[M]M17241661[/M] has a 72.320-bit (22-digit) factor: [url=https://www.mersenne.ca/M17241661]5893065745750418154847[/url] (ECM,B1=50000,B2=5000000)
[M]M4087403[/M] has a 72.248-bit (22-digit) factor: [url=https://www.mersenne.ca/M4087403]5608162665617276215543[/url] (ECM,B1=50000,B2=5000000)
[M]M15945977[/M] has a 72.244-bit (22-digit) factor: [url=https://www.mersenne.ca/M15945977]5591175795564224251447[/url] (ECM,B1=50000,B2=5000000)
[M]M3466139[/M] has a 72.099-bit (22-digit) factor: [url=https://www.mersenne.ca/M3466139]5058780933180069124543[/url] (ECM,B1=50000,B2=5000000)
[M]M357593[/M] has a 71.507-bit (22-digit) factor: [url=https://www.mersenne.ca/M357593]3356454565574485522831[/url] (ECM)
[M]M2011957[/M] has a 71.343-bit (22-digit) factor: [url=https://www.mersenne.ca/M2011957]2995819168374884379599[/url] (ECM,B1=50000,B2=5000000)
[M]M11768521[/M] has a 71.326-bit (22-digit) factor: [url=https://www.mersenne.ca/M11768521]2960548957163308040639[/url] (ECM,B1=50000,B2=5000000)
[M]M2101823[/M] has a 71.291-bit (22-digit) factor: [url=https://www.mersenne.ca/M2101823]2888992043614839049969[/url] (ECM,B1=50000,B2=5000000)
[M]M2016967[/M] has a 70.863-bit (22-digit) factor: [url=https://www.mersenne.ca/M2016967]2147244562392658380671[/url] (ECM,B1=50000,B2=5000000)
[M]M9774689[/M] has a 70.594-bit (22-digit) factor: [url=https://www.mersenne.ca/M9774689]1782325907673048696617[/url] (ECM,B1=50000,B2=5000000)
[M]M8505547[/M] has a 70.462-bit (22-digit) factor: [url=https://www.mersenne.ca/M8505547]1626059100099511021519[/url] (ECM)
[M]M2014697[/M] has a 70.049-bit (22-digit) factor: [url=https://www.mersenne.ca/M2014697]1221763703906377059007[/url] (ECM,B1=50000,B2=5000000)
[M]M3374467[/M] has a 69.961-bit (22-digit) factor: [url=https://www.mersenne.ca/M3374467]1148888237608238623313[/url] (ECM,B1=50000,B2=5000000)
[M]M3526111[/M] has a 69.109-bit (21-digit) factor: [url=https://www.mersenne.ca/M3526111]636644645903751757903[/url] (ECM)
[M]M5575861[/M] has a 69.068-bit (21-digit) factor: [url=https://www.mersenne.ca/M5575861]618723640194762039911[/url] (ECM)
[M]M8712713[/M] has a 68.852-bit (21-digit) factor: [url=https://www.mersenne.ca/M8712713]532817346388756112777[/url] (ECM)
[M]M3495409[/M] has a 68.725-bit (21-digit) factor: [url=https://www.mersenne.ca/M3495409]487880320910357815697[/url] (ECM)
[M]M5466521[/M] has a 68.325-bit (21-digit) factor: [url=https://www.mersenne.ca/M5466521]369702309257029918111[/url] (ECM)
[M]M5479807[/M] has a 68.109-bit (21-digit) factor: [url=https://www.mersenne.ca/M5479807]318326259707451798823[/url] (ECM)
[M]M5578189[/M] has a 68.050-bit (21-digit) factor: [url=https://www.mersenne.ca/M5578189]305618635361398323647[/url] (ECM)
[M]M6351649[/M] has a 67.986-bit (21-digit) factor: [url=https://www.mersenne.ca/M6351649]292269521189942677279[/url] (ECM)
[M]M3678347[/M] has a 67.968-bit (21-digit) factor: [url=https://www.mersenne.ca/M3678347]288743684346355272721[/url] (ECM)
[M]M5504717[/M] has a 67.831-bit (21-digit) factor: [url=https://www.mersenne.ca/M5504717]262462576364268890399[/url] (ECM)
[M]M10315931[/M] has a 67.722-bit (21-digit) factor: [url=https://www.mersenne.ca/M10315931]243499944582124221223[/url] (ECM,B1=50000,B2=5000000)
[M]M5561869[/M] has a 67.360-bit (21-digit) factor: [url=https://www.mersenne.ca/M5561869]189340540128615566777[/url] (ECM)
[M]M8433559[/M] has a 67.359-bit (21-digit) factor: [url=https://www.mersenne.ca/M8433559]189242547772865109577[/url] (ECM)
[M]M5594657[/M] has a 67.310-bit (21-digit) factor: [url=https://www.mersenne.ca/M5594657]182930745355854589199[/url] (ECM)
[M]M2407411[/M] has a 67.255-bit (21-digit) factor: [url=https://www.mersenne.ca/M2407411]176124546292044121279[/url] (ECM,B1=50000,B2=5000000)
[M]M5560169[/M] has a 67.237-bit (21-digit) factor: [url=https://www.mersenne.ca/M5560169]173947795999306161487[/url] (ECM)
[M]M9975193[/M] has a 66.950-bit (21-digit) factor: [url=https://www.mersenne.ca/M9975193]142523895195003953399[/url] (ECM,B1=50000,B2=5000000)
[M]M5485483[/M] has a 66.919-bit (21-digit) factor: [url=https://www.mersenne.ca/M5485483]139509460233727229201[/url] (ECM)
[M]M3027527[/M] has a 66.912-bit (21-digit) factor: [url=https://www.mersenne.ca/M3027527]138857589350772761087[/url] (ECM)
[M]M5277227[/M] has a 66.874-bit (21-digit) factor: [url=https://www.mersenne.ca/M5277227]135225288628611558809[/url] (ECM)
[M]M4999201[/M] has a 66.826-bit (21-digit) factor: [url=https://www.mersenne.ca/M4999201]130844386059276234791[/url] (ECM)
[M]M3378043[/M] has a 66.523-bit (21-digit) factor: [url=https://www.mersenne.ca/M3378043]106040774367449916791[/url] (ECM)
[M]M5383853[/M] has a 66.403-bit (20-digit) factor: [url=https://www.mersenne.ca/M5383853]97585893456519781513[/url] (ECM)
[M]M4112579[/M] has a 66.375-bit (20-digit) factor: [url=https://www.mersenne.ca/M4112579]95685642674772479359[/url] (ECM,B1=50000,B2=5000000)
[M]M3439561[/M] has a 66.232-bit (20-digit) factor: [url=https://www.mersenne.ca/M3439561]86668078763519228207[/url] (ECM,B1=50000,B2=5000000)
[M]M3577517[/M] has a 66.120-bit (20-digit) factor: [url=https://www.mersenne.ca/M3577517]80171199736997937209[/url] (ECM)
[M]M2852429[/M] has a 65.997-bit (20-digit) factor: [url=https://www.mersenne.ca/M2852429]73653979990415780927[/url] (ECM)
[M]M4865141[/M] has a 65.873-bit (20-digit) factor: [url=https://www.mersenne.ca/M4865141]67556028396571159391[/url] (ECM)
[M]M5477429[/M] has a 65.758-bit (20-digit) factor: [url=https://www.mersenne.ca/M5477429]62400197354991930223[/url] (ECM)
[M]M5378063[/M] has a 65.587-bit (20-digit) factor: [url=https://www.mersenne.ca/M5378063]55425284831454618161[/url] (ECM)
[M]M2538017[/M] has a 65.399-bit (20-digit) factor: [url=https://www.mersenne.ca/M2538017]48646857116599875143[/url] (ECM)
[M]M3374797[/M] has a 65.328-bit (20-digit) factor: [url=https://www.mersenne.ca/M3374797]46326756180026303351[/url] (ECM,B1=50000,B2=5000000)
[M]M5593871[/M] has a 65.176-bit (20-digit) factor: [url=https://www.mersenne.ca/M5593871]41678883614909565049[/url] (ECM)
[M]M5428427[/M] has a 65.136-bit (20-digit) factor: [url=https://www.mersenne.ca/M5428427]40552644928004392751[/url] (ECM)
[M]M5011807[/M] has a 63.876-bit (20-digit) factor: [url=https://www.mersenne.ca/M5011807]16925919895838667023[/url] (ECM)
[M]M3381251[/M] has a 63.497-bit (20-digit) factor: [url=https://www.mersenne.ca/M3381251]13012535728324526423[/url] (ECM,B1=50000,B2=5000000)
[M]M3459641[/M] has a 63.432-bit (20-digit) factor: [url=https://www.mersenne.ca/M3459641]12439162888577892241[/url] (ECM)
[M]M2990137[/M] has a 62.439-bit (19-digit) factor: [url=https://www.mersenne.ca/M2990137]6250378164112199753[/url] (ECM)

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 Sid & Andy	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 Sid & Andy

#	User	Exponent	Factor	Digits	Bits ↓ *	Date
1	Sid & Andy	14173	5451595560230412055196637501309406085341593764073929	52	171.865	2017-06-06
2	Sid & Andy	11027	288363872191768892050551279270150054945736765655279	51	167.624	2017-04-15
3	Sid & Andy	2210233	113721004647423763582569111201841	33	106.487	2017-09-28
4	Sid & Andy	2017579	156889145858844658447392754567	30	96.986	2017-10-04
5	Sid & Andy	5559473	1975988685816809174474328457	28	90.675	2015-06-30
6	Sid & Andy	359663	1191268844032775298128035241	28	89.945	2011-02-02
7	Sid & Andy	2012221	589201317973605896661410039	27	88.929	2017-10-31
8	Sid & Andy	358931	574681453385948143244980441	27	88.893	2011-02-01
9	Sid & Andy	2018629	172902060883908125941586743	27	87.160	2017-11-13
10	Sid & Andy	355933	148928192381021328006980719	27	86.945	2011-01-11
11	Sid & Andy	15911447	122632558125216750633150871	27	86.664	2017-10-11
12	Sid & Andy	11584981	42677991295299898103090113	26	85.142	2017-11-01
13	Sid & Andy	5397863	36616091722259480779540793	26	84.921	2015-03-20
14	Sid & Andy	5423741	22165102688632795916769113	26	84.196	2015-04-05
15	Sid & Andy	2303599	8708119539618067243492177	25	82.849	2017-11-18
16	Sid & Andy	5638247	2275815875836549137731671	25	80.913	2015-08-31
17	Sid & Andy	3482021	1699184410843978033542569	25	80.491	2017-01-13
18	Sid & Andy	2013329	1551291418228027677981041	25	80.360	2017-11-17
19	Sid & Andy	8641807	1190742114436393608102017	25	79.978	2013-09-04
20	Sid & Andy	17610811	787036718112210740056903	24	79.381	2018-03-07
21	Sid & Andy	5453557	779628670204106978678279	24	79.367	2015-07-16
22	Sid & Andy	3440609	578790043002501245675351	24	78.937	2016-12-17
23	Sid & Andy	2108339	326909466647050250949121	24	78.113	2017-12-01
24	Sid & Andy	5350843	232750662230454419529767	24	77.623	2015-01-22
25	Sid & Andy	2018543	190035050462974566113113	24	77.331	2017-11-06
26	Sid & Andy	5592469	177163607314053098230841	24	77.229	2011-02-25
27	Sid & Andy	2010329	174078445645502436061241	24	77.204	2017-10-06
28	Sid & Andy	357667	163252584473116537984129	24	77.111	2011-01-17
29	Sid & Andy	2016587	150453697229388656457503	24	76.994	2017-12-11
30	Sid & Andy	2307959	104017649731374211595599	24	76.461	2017-10-18
31	Sid & Andy	3552433	103791035934650649470903	24	76.458	2009-07-31
32	Sid & Andy	2101873	79468177728651611356361	23	76.073	2017-11-07
33	Sid & Andy	2011111	52696645156114999338809	23	75.480	2017-10-15
34	Sid & Andy	17256787	43608471359327145160471	23	75.207	2017-12-27
35	Sid & Andy	2301281	42130660566024049962073	23	75.157	2017-10-19
36	Sid & Andy	5573549	35388402713538178146103	23	74.906	2015-07-16
37	Sid & Andy	3467759	34365275413059869084591	23	74.863	2009-07-19
38	Sid & Andy	2017243	33547495401046142975143	23	74.829	2017-12-13
39	Sid & Andy	2101553	28672250286998034959321	23	74.602	2017-10-30
40	Sid & Andy	2101061	13967365986826654839991	23	73.564	2017-10-17
41	Sid & Andy	10358351	10388418063319509904489	23	73.137	2015-05-17
42	Sid & Andy	5624389	7791322261724897381209	22	72.722	2015-08-23
43	Sid & Andy	5371543	7417499733794495829919	22	72.651	2015-02-08
44	Sid & Andy	1531769	7385157270335579834471	22	72.645	2013-09-10
45	Sid & Andy	3833009	6860490792869448265207	22	72.539	2016-03-24
46	Sid & Andy	10319509	6663468677235716293529	22	72.497	2015-05-14
47	Sid & Andy	2017397	6558252626807419223249	22	72.474	2017-10-02
48	Sid & Andy	17241661	5893065745750418154847	22	72.320	2017-12-23
49	Sid & Andy	4087403	5608162665617276215543	22	72.248	2016-04-04
50	Sid & Andy	15945977	5591175795564224251447	22	72.244	2017-09-29
51	Sid & Andy	3466139	5058780933180069124543	22	72.099	2016-12-31
52	Sid & Andy	357593	3356454565574485522831	22	71.507	2011-01-23
53	Sid & Andy	2011957	2995819168374884379599	22	71.343	2017-10-30
54	Sid & Andy	11768521	2960548957163308040639	22	71.326	2018-01-07
55	Sid & Andy	2101823	2888992043614839049969	22	71.291	2017-11-05
56	Sid & Andy	2016967	2147244562392658380671	22	70.863	2017-12-12
57	Sid & Andy	9774689	1782325907673048696617	22	70.594	2015-01-15
58	Sid & Andy	8505547	1626059100099511021519	22	70.462	2013-07-25
59	Sid & Andy	2014697	1221763703906377059007	22	70.049	2017-11-26
60	Sid & Andy	3374467	1148888237608238623313	22	69.961	2014-10-11
61	Sid & Andy	3526111	636644645903751757903	21	69.109	2009-07-24
62	Sid & Andy	5575861	618723640194762039911	21	69.068	2015-07-18
63	Sid & Andy	8712713	532817346388756112777	21	68.852	2013-12-28
64	Sid & Andy	3495409	487880320910357815697	21	68.725	2015-05-22
65	Sid & Andy	5466521	369702309257029918111	21	68.325	2015-05-03
66	Sid & Andy	5479807	318326259707451798823	21	68.109	2015-05-11
67	Sid & Andy	5578189	305618635361398323647	21	68.050	2015-07-21
68	Sid & Andy	6351649	292269521189942677279	21	67.986	2011-11-13
69	Sid & Andy	3678347	288743684346355272721	21	67.968	2009-08-27
70	Sid & Andy	5504717	262462576364268890399	21	67.831	2015-06-06
71	Sid & Andy	10315931	243499944582124221223	21	67.722	2015-05-13
72	Sid & Andy	5561869	189340540128615566777	21	67.360	2015-07-05
73	Sid & Andy	8433559	189242547772865109577	21	67.359	2013-09-17
74	Sid & Andy	5594657	182930745355854589199	21	67.310	2015-08-02
75	Sid & Andy	2407411	176124546292044121279	21	67.255	2017-11-23
76	Sid & Andy	5560169	173947795999306161487	21	67.237	2015-07-01
77	Sid & Andy	9975193	142523895195003953399	21	66.950	2015-04-06
78	Sid & Andy	5485483	139509460233727229201	21	66.919	2015-05-16
79	Sid & Andy	3027527	138857589350772761087	21	66.912	2009-04-10
80	Sid & Andy	5277227	135225288628611558809	21	66.874	2010-11-06
81	Sid & Andy	4999201	130844386059276234791	21	66.826	2014-05-05
82	Sid & Andy	3378043	106040774367449916791	21	66.523	2009-06-12
83	Sid & Andy	5383853	97585893456519781513	20	66.403	2015-02-22
84	Sid & Andy	4112579	95685642674772479359	20	66.375	2016-04-11
85	Sid & Andy	3439561	86668078763519228207	20	66.232	2016-12-17
86	Sid & Andy	3577517	80171199736997937209	20	66.120	2015-07-11
87	Sid & Andy	2852429	73653979990415780927	20	65.997	2009-04-04
88	Sid & Andy	4865141	67556028396571159391	20	65.873	2014-03-01
89	Sid & Andy	5477429	62400197354991930223	20	65.758	2015-05-10
90	Sid & Andy	5378063	55425284831454618161	20	65.587	2015-02-16
91	Sid & Andy	2538017	48646857116599875143	20	65.399	2009-04-20
92	Sid & Andy	3374797	46326756180026303351	20	65.328	2014-10-13
93	Sid & Andy	5593871	41678883614909565049	20	65.176	2011-02-25
94	Sid & Andy	5428427	40552644928004392751	20	65.136	2015-04-09
95	Sid & Andy	5011807	16925919895838667023	20	63.876	2014-05-12
96	Sid & Andy	3381251	13012535728324526423	20	63.497	2014-10-23
97	Sid & Andy	3459641	12439162888577892241	20	63.432	2009-07-11
98	Sid & Andy	2990137	6250378164112199753	19	62.439	2009-04-05