Mersenne ECM top factors

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M38767 has a factor: 148461141274236914038505905385207473678081 (136.769 bits)
M2224171 has a factor: 38055727396750269612079156009484417 (114.874 bits)
M6773111 has a factor: 197219540552962664659958224687159 (107.282 bits)
M3037087 has a factor: 10946886985548556437605645460281 (103.110 bits)
M2488469 has a factor: 9878019661744483984786333199 (92.996 bits)
M3843361 has a factor: 7489614765319326960256257511 (92.597 bits)
M2984521 has a factor: 5750286239381490782861323159 (92.216 bits)
M287549 has a factor: 855306611633767979224087561 (89.467 bits)
M2224429 has a factor: 689578438247872115391079417 (89.156 bits)
M2419811 has a factor: 417965722234957311337742191 (88.434 bits)
M2669477 has a factor: 176615797467749423243176919 (87.191 bits)
M2278643 has a factor: 171821809556288309780202047 (87.151 bits)
M2131609 has a factor: 164798219931764766019634383 (87.091 bits)
M631247 has a factor: 83947913480780207864691737 (86.118 bits)
M3107569 has a factor: 22193749806422796569693233 (84.198 bits)
M2286799 has a factor: 14358762695597189407346513 (83.570 bits)
M3227363 has a factor: 13108590869479648374889087 (83.439 bits)
M2989043 has a factor: 8784418028491055512652383 (82.861 bits)
M2227061 has a factor: 5581570114721247434451031 (82.207 bits)
M2241797 has a factor: 5478188973772010286281609 (82.180 bits)
M2497801 has a factor: 5189683165829770556158417 (82.102 bits)
M2849669 has a factor: 4337711041506358026433367 (81.843 bits)
M2824387 has a factor: 3153178596400759463659481 (81.383 bits)
M2679553 has a factor: 3147911932523609799520417 (81.381 bits)
M2220887 has a factor: 2740409764100324796594887 (81.181 bits)
M2263213 has a factor: 1003757295344336454166529 (79.732 bits)
M4224769 has a factor: 897424490631434714036897 (79.570 bits)
M3122341 has a factor: 520503190521241011099089 (78.784 bits)
M2389873 has a factor: 431624602676723117173511 (78.514 bits)
M2784647 has a factor: 176227827649434108945127 (77.222 bits)
M3092057 has a factor: 157791885417506343977849 (77.062 bits)
M1862737 has a factor: 154431441530557153023703 (77.031 bits)
M2197421 has a factor: 151754300787198010041961 (77.006 bits)
M3171253 has a factor: 131488088844616495500631 (76.799 bits)
M3572351 has a factor: 107518666293319936508417 (76.509 bits)
M2930561 has a factor: 78774229711426199168849 (76.060 bits)
M2319029 has a factor: 78462989488021487721809 (76.054 bits)
M6769669 has a factor: 76839388808667558332879 (76.024 bits)
M2298313 has a factor: 59859406307455888070257 (75.664 bits)
M2088349 has a factor: 47339954464664569167983 (75.325 bits)
M2375039 has a factor: 44811231109224268923937 (75.246 bits)
M2747551 has a factor: 29461079770528988525681 (74.641 bits)
M4175477 has a factor: 25724575186837767805511 (74.446 bits)
M4225121 has a factor: 21763974766567083004673 (74.204 bits)
M3442331 has a factor: 20227519096543593656729 (74.099 bits)
M4203421 has a factor: 19347124033436167291087 (74.035 bits)
M2478347 has a factor: 11428683771234486160231 (73.275 bits)
M2051893 has a factor: 9577059980816569173761 (73.020 bits)
M3524371 has a factor: 8610481887233857410511 (72.867 bits)
M2991277 has a factor: 8222494110478498955063 (72.800 bits)
M2776129 has a factor: 8059226765951679842759 (72.771 bits)
M3512317 has a factor: 5253077544612749622079 (72.154 bits)
M3344321 has a factor: 3725268236334806373007 (71.658 bits)
M1914587 has a factor: 3442535138868247259729 (71.544 bits)
M2744459 has a factor: 3119654727469723394881 (71.402 bits)
M3491707 has a factor: 2976944035709907006911 (71.334 bits)
M3021061 has a factor: 2629303633231342434959 (71.155 bits)
M2294689 has a factor: 1372501171138981001623 (70.217 bits)
M2552357 has a factor: 1308695524001173920607 (70.149 bits)
M2019973 has a factor: 861739036654641931633 (69.546 bits)
M2508691 has a factor: 698210833406600398249 (69.242 bits)
M3132803 has a factor: 306445134926679856631 (68.054 bits)
M9578651 has a factor: 52803187058228121007 (65.517 bits)
M6622019 has a factor: 16272841054244232721 (63.819 bits)

For copy-paste to forum:

[M]M38767[/M] has a 136.769-bit (42-digit) factor: [url=https://www.mersenne.ca/M38767]148461141274236914038505905385207473678081[/url] (ECM,B1=3000000,B2=300000000)
[M]M2224171[/M] has a 114.874-bit (35-digit) factor: [url=https://www.mersenne.ca/M2224171]38055727396750269612079156009484417[/url] (ECM,B1=1000000,B2=2054030055,Sigma=6252172170133562)
[M]M6773111[/M] has a 107.282-bit (33-digit) factor: [url=https://www.mersenne.ca/M6773111]197219540552962664659958224687159[/url] (ECM)
[M]M3037087[/M] has a 103.110-bit (32-digit) factor: [url=https://www.mersenne.ca/M3037087]10946886985548556437605645460281[/url] (ECM,B1=50000,B2=6750000,Sigma=8459903239941766)
[M]M2488469[/M] has a 92.996-bit (28-digit) factor: [url=https://www.mersenne.ca/M2488469]9878019661744483984786333199[/url] (ECM,B1=50000,B2=38914785,Sigma=1134750319880908)
[M]M3843361[/M] has a 92.597-bit (28-digit) factor: [url=https://www.mersenne.ca/M3843361]7489614765319326960256257511[/url] (ECM,B1=50000,B2=38900000,Sigma=8822224760628451)
[M]M2984521[/M] has a 92.216-bit (28-digit) factor: [url=https://www.mersenne.ca/M2984521]5750286239381490782861323159[/url] (ECM,B1=50000,B2=6750000,Sigma=4328294653816721)
[M]M287549[/M] has a 89.467-bit (27-digit) factor: [url=https://www.mersenne.ca/M287549]855306611633767979224087561[/url] (ECM,Sigma=2848179122949265)
[M]M2224429[/M] has a 89.156-bit (27-digit) factor: [url=https://www.mersenne.ca/M2224429]689578438247872115391079417[/url] (ECM,B1=1000000,B2=2054000000,Sigma=7895799951513180)
[M]M2419811[/M] has a 88.434-bit (27-digit) factor: [url=https://www.mersenne.ca/M2419811]417965722234957311337742191[/url] (ECM,B1=50000,B2=38914785,Sigma=3220352999433312)
[M]M2669477[/M] has a 87.191-bit (27-digit) factor: [url=https://www.mersenne.ca/M2669477]176615797467749423243176919[/url] (ECM,B1=50000,B2=38914785,Sigma=6255271995569423)
[M]M2278643[/M] has a 87.151-bit (27-digit) factor: [url=https://www.mersenne.ca/M2278643]171821809556288309780202047[/url] (ECM,Sigma=7077731414342316)
[M]M2131609[/M] has a 87.091-bit (27-digit) factor: [url=https://www.mersenne.ca/M2131609]164798219931764766019634383[/url] (ECM,B1=50000,B2=6750000,Sigma=3204312188820248)
[M]M631247[/M] has a 86.118-bit (26-digit) factor: [url=https://www.mersenne.ca/M631247]83947913480780207864691737[/url] (ECM)
[M]M3107569[/M] has a 84.198-bit (26-digit) factor: [url=https://www.mersenne.ca/M3107569]22193749806422796569693233[/url] (ECM,B1=50000,B2=38914785,Sigma=1513831481045302)
[M]M2286799[/M] has a 83.570-bit (26-digit) factor: [url=https://www.mersenne.ca/M2286799]14358762695597189407346513[/url] (ECM,B1=50000,B2=6750000,Sigma=8447221590527584)
[M]M3227363[/M] has a 83.439-bit (26-digit) factor: [url=https://www.mersenne.ca/M3227363]13108590869479648374889087[/url] (ECM,B1=50000,B2=5300000,Sigma=5997914415883356)
[M]M2989043[/M] has a 82.861-bit (25-digit) factor: [url=https://www.mersenne.ca/M2989043]8784418028491055512652383[/url] (ECM,B1=50000,B2=6900000,Sigma=2918504809402985)
[M]M2227061[/M] has a 82.207-bit (25-digit) factor: [url=https://www.mersenne.ca/M2227061]5581570114721247434451031[/url] (ECM,Sigma=6477035049031178)
[M]M2241797[/M] has a 82.180-bit (25-digit) factor: [url=https://www.mersenne.ca/M2241797]5478188973772010286281609[/url] (ECM,Sigma=6254146905006939)
[M]M2497801[/M] has a 82.102-bit (25-digit) factor: [url=https://www.mersenne.ca/M2497801]5189683165829770556158417[/url] (ECM,Sigma=6817835071174354)
[M]M2849669[/M] has a 81.843-bit (25-digit) factor: [url=https://www.mersenne.ca/M2849669]4337711041506358026433367[/url] (ECM,B1=50000,B2=6750000,Sigma=328241424547949)
[M]M2824387[/M] has a 81.383-bit (25-digit) factor: [url=https://www.mersenne.ca/M2824387]3153178596400759463659481[/url] (ECM,Sigma=5390105565159398)
[M]M2679553[/M] has a 81.381-bit (25-digit) factor: [url=https://www.mersenne.ca/M2679553]3147911932523609799520417[/url] (ECM,B1=50000,B2=38914785,Sigma=1967476492046)
[M]M2220887[/M] has a 81.181-bit (25-digit) factor: [url=https://www.mersenne.ca/M2220887]2740409764100324796594887[/url] (ECM,B1=1000000,B2=2054030055,Sigma=6828444499569655)
[M]M2263213[/M] has a 79.732-bit (25-digit) factor: [url=https://www.mersenne.ca/M2263213]1003757295344336454166529[/url] (ECM,Sigma=7959932422825680)
[M]M4224769[/M] has a 79.570-bit (24-digit) factor: [url=https://www.mersenne.ca/M4224769]897424490631434714036897[/url] (ECM,B1=50000,B2=38914785,Sigma=6493946674268795)
[M]M3122341[/M] has a 78.784-bit (24-digit) factor: [url=https://www.mersenne.ca/M3122341]520503190521241011099089[/url] (ECM,B1=50000,B2=6750000,Sigma=7679945602309314)
[M]M2389873[/M] has a 78.514-bit (24-digit) factor: [url=https://www.mersenne.ca/M2389873]431624602676723117173511[/url] (ECM,Sigma=4534369597849328)
[M]M2784647[/M] has a 77.222-bit (24-digit) factor: [url=https://www.mersenne.ca/M2784647]176227827649434108945127[/url] (ECM,Sigma=2380338422909974)
[M]M3092057[/M] has a 77.062-bit (24-digit) factor: [url=https://www.mersenne.ca/M3092057]157791885417506343977849[/url] (ECM,B1=50000,B2=6900000,Sigma=4522186146407717)
[M]M1862737[/M] has a 77.031-bit (24-digit) factor: [url=https://www.mersenne.ca/M1862737]154431441530557153023703[/url] (ECM,Sigma=933047448350429)
[M]M2197421[/M] has a 77.006-bit (24-digit) factor: [url=https://www.mersenne.ca/M2197421]151754300787198010041961[/url] (ECM,B1=50000,B2=6400000,Sigma=5967434912238558)
[M]M3171253[/M] has a 76.799-bit (24-digit) factor: [url=https://www.mersenne.ca/M3171253]131488088844616495500631[/url] (ECM,B1=50000,B2=7000000,Sigma=3473257423967255)
[M]M3572351[/M] has a 76.509-bit (24-digit) factor: [url=https://www.mersenne.ca/M3572351]107518666293319936508417[/url] (ECM,B1=50000,B2=38914785,Sigma=8173517187815200)
[M]M2930561[/M] has a 76.060-bit (23-digit) factor: [url=https://www.mersenne.ca/M2930561]78774229711426199168849[/url] (ECM,Sigma=5201690140367024)
[M]M2319029[/M] has a 76.054-bit (23-digit) factor: [url=https://www.mersenne.ca/M2319029]78462989488021487721809[/url] (ECM,B1=50000,B2=38914785,Sigma=3213877417745648)
[M]M6769669[/M] has a 76.024-bit (23-digit) factor: [url=https://www.mersenne.ca/M6769669]76839388808667558332879[/url] (ECM)
[M]M2298313[/M] has a 75.664-bit (23-digit) factor: [url=https://www.mersenne.ca/M2298313]59859406307455888070257[/url] (ECM,Sigma=4811854798942940)
[M]M2088349[/M] has a 75.325-bit (23-digit) factor: [url=https://www.mersenne.ca/M2088349]47339954464664569167983[/url] (ECM,B1=50000,B2=5000000)
[M]M2375039[/M] has a 75.246-bit (23-digit) factor: [url=https://www.mersenne.ca/M2375039]44811231109224268923937[/url] (ECM,Sigma=2076450320536695)
[M]M2747551[/M] has a 74.641-bit (23-digit) factor: [url=https://www.mersenne.ca/M2747551]29461079770528988525681[/url] (ECM,B1=50000,B2=5000000)
[M]M4175477[/M] has a 74.446-bit (23-digit) factor: [url=https://www.mersenne.ca/M4175477]25724575186837767805511[/url] (ECM,B1=50000,B2=38914785,Sigma=1801651576682306)
[M]M4225121[/M] has a 74.204-bit (23-digit) factor: [url=https://www.mersenne.ca/M4225121]21763974766567083004673[/url] (ECM,B1=50000,B2=38914785,Sigma=5440377105429527)
[M]M3442331[/M] has a 74.099-bit (23-digit) factor: [url=https://www.mersenne.ca/M3442331]20227519096543593656729[/url] (ECM,B1=50000,B2=38914785,Sigma=5462376974249086)
[M]M4203421[/M] has a 74.035-bit (23-digit) factor: [url=https://www.mersenne.ca/M4203421]19347124033436167291087[/url] (ECM,B1=50000,B2=38914785,Sigma=1540953430633871)
[M]M2478347[/M] has a 73.275-bit (23-digit) factor: [url=https://www.mersenne.ca/M2478347]11428683771234486160231[/url] (ECM,B1=50000,B2=5000000)
[M]M2051893[/M] has a 73.020-bit (22-digit) factor: [url=https://www.mersenne.ca/M2051893]9577059980816569173761[/url] (ECM,Sigma=5480951457341487)
[M]M3524371[/M] has a 72.867-bit (22-digit) factor: [url=https://www.mersenne.ca/M3524371]8610481887233857410511[/url] (ECM,B1=50000,B2=6750000,Sigma=6777227559263784)
[M]M2991277[/M] has a 72.800-bit (22-digit) factor: [url=https://www.mersenne.ca/M2991277]8222494110478498955063[/url] (ECM,Sigma=3400619406816790)
[M]M2776129[/M] has a 72.771-bit (22-digit) factor: [url=https://www.mersenne.ca/M2776129]8059226765951679842759[/url] (ECM,B1=50000,B2=5000000)
[M]M3512317[/M] has a 72.154-bit (22-digit) factor: [url=https://www.mersenne.ca/M3512317]5253077544612749622079[/url] (ECM,B1=50000,B2=6750000,Sigma=4594260545287705)
[M]M3344321[/M] has a 71.658-bit (22-digit) factor: [url=https://www.mersenne.ca/M3344321]3725268236334806373007[/url] (ECM,B1=50000,B2=6750000,Sigma=6239881828401152)
[M]M1914587[/M] has a 71.544-bit (22-digit) factor: [url=https://www.mersenne.ca/M1914587]3442535138868247259729[/url] (ECM)
[M]M2744459[/M] has a 71.402-bit (22-digit) factor: [url=https://www.mersenne.ca/M2744459]3119654727469723394881[/url] (ECM,B1=50000,B2=6900000,Sigma=7943951189329497)
[M]M3491707[/M] has a 71.334-bit (22-digit) factor: [url=https://www.mersenne.ca/M3491707]2976944035709907006911[/url] (ECM,B1=50000,B2=38914785,Sigma=4541902380347321)
[M]M3021061[/M] has a 71.155-bit (22-digit) factor: [url=https://www.mersenne.ca/M3021061]2629303633231342434959[/url] (ECM,B1=50000,B2=5000000)
[M]M2294689[/M] has a 70.217-bit (22-digit) factor: [url=https://www.mersenne.ca/M2294689]1372501171138981001623[/url] (ECM,B1=50000,B2=5000000)
[M]M2552357[/M] has a 70.149-bit (22-digit) factor: [url=https://www.mersenne.ca/M2552357]1308695524001173920607[/url] (ECM,B1=50000,B2=5000000,Sigma=4869208130626437)
[M]M2019973[/M] has a 69.546-bit (21-digit) factor: [url=https://www.mersenne.ca/M2019973]861739036654641931633[/url] (ECM,B1=50000,B2=5000000)
[M]M2508691[/M] has a 69.242-bit (21-digit) factor: [url=https://www.mersenne.ca/M2508691]698210833406600398249[/url] (ECM,B1=50000,B2=5000000)
[M]M3132803[/M] has a 68.054-bit (21-digit) factor: [url=https://www.mersenne.ca/M3132803]306445134926679856631[/url] (ECM,B1=50000,B2=5000000)
[M]M9578651[/M] has a 65.517-bit (20-digit) factor: [url=https://www.mersenne.ca/M9578651]52803187058228121007[/url] (ECM,B1=50000,B2=5000000)
[M]M6622019[/M] has a 63.819-bit (20-digit) factor: [url=https://www.mersenne.ca/M6622019]16272841054244232721[/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 LaurV	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 LaurV

#	User	Exponent	Factor	Digits	Bits ↓ *	Date
1	LaurV	38767	148461141274236914038505905385207473678081	42	136.769	2020-12-17
2	LaurV	2224171	38055727396750269612079156009484417	35	114.874	2023-02-20
3	LaurV	6773111	197219540552962664659958224687159	33	107.282	2012-06-05
4	LaurV	3037087	10946886985548556437605645460281	32	103.110	2021-06-15
5	LaurV	2488469	9878019661744483984786333199	28	92.996	2022-12-02
6	LaurV	3843361	7489614765319326960256257511	28	92.597	2022-12-08
7	LaurV	2984521	5750286239381490782861323159	28	92.216	2021-06-21
8	LaurV	287549	855306611633767979224087561	27	89.467	2020-09-14
9	LaurV	2224429	689578438247872115391079417	27	89.156	2023-05-01
10	LaurV	2419811	417965722234957311337742191	27	88.434	2022-10-02
11	LaurV	2669477	176615797467749423243176919	27	87.191	2022-11-29
12	LaurV	2278643	171821809556288309780202047	27	87.151	2020-06-23
13	LaurV	2131609	164798219931764766019634383	27	87.091	2021-06-18
14	LaurV	631247	83947913480780207864691737	26	86.118	2013-05-30
15	LaurV	3107569	22193749806422796569693233	26	84.198	2022-11-25
16	LaurV	2286799	14358762695597189407346513	26	83.570	2021-06-16
17	LaurV	3227363	13108590869479648374889087	26	83.439	2022-09-21
18	LaurV	2989043	8784418028491055512652383	25	82.861	2022-09-17
19	LaurV	2227061	5581570114721247434451031	25	82.207	2020-06-23
20	LaurV	2241797	5478188973772010286281609	25	82.180	2020-06-27
21	LaurV	2497801	5189683165829770556158417	25	82.102	2020-06-25
22	LaurV	2849669	4337711041506358026433367	25	81.843	2021-06-15
23	LaurV	2824387	3153178596400759463659481	25	81.383	2020-09-15
24	LaurV	2679553	3147911932523609799520417	25	81.381	2022-11-06
25	LaurV	2220887	2740409764100324796594887	25	81.181	2023-04-17
26	LaurV	2263213	1003757295344336454166529	25	79.732	2020-06-27
27	LaurV	4224769	897424490631434714036897	24	79.570	2022-11-24
28	LaurV	3122341	520503190521241011099089	24	78.784	2021-06-18
29	LaurV	2389873	431624602676723117173511	24	78.514	2020-06-20
30	LaurV	2784647	176227827649434108945127	24	77.222	2020-10-04
31	LaurV	3092057	157791885417506343977849	24	77.062	2022-09-18
32	LaurV	1862737	154431441530557153023703	24	77.031	2020-07-01
33	LaurV	2197421	151754300787198010041961	24	77.006	2021-06-16
34	LaurV	3171253	131488088844616495500631	24	76.799	2022-09-15
35	LaurV	3572351	107518666293319936508417	24	76.509	2022-10-02
36	LaurV	2930561	78774229711426199168849	23	76.060	2020-10-07
37	LaurV	2319029	78462989488021487721809	23	76.054	2022-12-22
38	LaurV	6769669	76839388808667558332879	23	76.024	2012-06-11
39	LaurV	2298313	59859406307455888070257	23	75.664	2020-09-29
40	LaurV	2088349	47339954464664569167983	23	75.325	2020-11-06
41	LaurV	2375039	44811231109224268923937	23	75.246	2020-10-09
42	LaurV	2747551	29461079770528988525681	23	74.641	2020-10-22
43	LaurV	4175477	25724575186837767805511	23	74.446	2022-12-30
44	LaurV	4225121	21763974766567083004673	23	74.204	2022-11-25
45	LaurV	3442331	20227519096543593656729	23	74.099	2022-11-22
46	LaurV	4203421	19347124033436167291087	23	74.035	2022-11-09
47	LaurV	2478347	11428683771234486160231	23	73.275	2020-10-13
48	LaurV	2051893	9577059980816569173761	22	73.020	2020-06-29
49	LaurV	3524371	8610481887233857410511	22	72.867	2021-06-22
50	LaurV	2991277	8222494110478498955063	22	72.800	2020-09-17
51	LaurV	2776129	8059226765951679842759	22	72.771	2020-09-25
52	LaurV	3512317	5253077544612749622079	22	72.154	2021-06-19
53	LaurV	3344321	3725268236334806373007	22	71.658	2021-06-16
54	LaurV	1914587	3442535138868247259729	22	71.544	2020-10-04
55	LaurV	2744459	3119654727469723394881	22	71.402	2022-09-04
56	LaurV	3491707	2976944035709907006911	22	71.334	2022-12-15
57	LaurV	3021061	2629303633231342434959	22	71.155	2020-10-26
58	LaurV	2294689	1372501171138981001623	22	70.217	2020-08-29
59	LaurV	2552357	1308695524001173920607	22	70.149	2021-06-17
60	LaurV	2019973	861739036654641931633	21	69.546	2020-12-04
61	LaurV	2508691	698210833406600398249	21	69.242	2020-09-23
62	LaurV	3132803	306445134926679856631	21	68.054	2020-11-18
63	LaurV	9578651	52803187058228121007	20	65.517	2014-11-13
64	LaurV	6622019	16272841054244232721	20	63.819	2012-03-16