Mersenne ECM top factors

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M57737 has a factor: 11537561664921293410375362319770507040529 (133.083 bits)
M2877313 has a factor: 69507560923196210480888074711 (95.811 bits)
M4259719 has a factor: 42064598913909897502235095841 (95.087 bits)
M2493019 has a factor: 509859358036878824124508583 (88.720 bits)
M4925233 has a factor: 26573471429190168951924551 (84.458 bits)
M2114041 has a factor: 10341489349590238600097009 (83.097 bits)
M4916489 has a factor: 9650820110044454986419673 (82.997 bits)
M2883197 has a factor: 3057036999633536881781401 (81.338 bits)
M2844329 has a factor: 2504994664535115057737671 (81.051 bits)
M2551961 has a factor: 921985105949998780606759 (79.609 bits)
M2041387 has a factor: 907270105266141852166649 (79.586 bits)
M2026447 has a factor: 771637974438370204868713 (79.352 bits)
M3235657 has a factor: 733788008250238919421559 (79.280 bits)
M2071921 has a factor: 620735442860658177877249 (79.038 bits)
M4413443 has a factor: 532768015169301994846903 (78.818 bits)
M3034159 has a factor: 415171369167192164453623 (78.458 bits)
M4412393 has a factor: 385500567019477370756839 (78.351 bits)
M1927729 has a factor: 385222133989788038416511 (78.350 bits)
M1876643 has a factor: 125445563459155900242383 (76.731 bits)
M4820951 has a factor: 90645486438263933098009 (76.263 bits)
M4262849 has a factor: 72334722309851011458911 (75.937 bits)
M4902757 has a factor: 69455875811385452787241 (75.879 bits)
M4771289 has a factor: 67113239761738634397617 (75.829 bits)
M2208103 has a factor: 60429667995104541794231 (75.678 bits)
M4872577 has a factor: 22181474900836604472263 (74.232 bits)
M2771687 has a factor: 14598320116385517948343 (73.628 bits)
M1895027 has a factor: 13709490211202623261199 (73.538 bits)
M2078117 has a factor: 11965073613193252078673 (73.341 bits)
M1932247 has a factor: 6021143858742648715999 (72.351 bits)
M2936977 has a factor: 5143032108295548753073 (72.123 bits)
M2957413 has a factor: 3477030292436152083839 (71.558 bits)
M4982249 has a factor: 2483048775967876158703 (71.073 bits)
M2554039 has a factor: 2122426097248114023599 (70.846 bits)
M4954241 has a factor: 1910734308085757947151 (70.695 bits)
M18580729 has a factor: 1478260124267394875863 (70.324 bits)
M1866251 has a factor: 1415154887440116857113 (70.261 bits)
M1847513 has a factor: 1070632672751018929961 (69.859 bits)
M1820633 has a factor: 1030880081827185529481 (69.804 bits)
M1996697 has a factor: 913602888597019050271 (69.630 bits)
M4903193 has a factor: 852476699667258963727 (69.530 bits)
M1789037 has a factor: 785079896857770808993 (69.411 bits)
M1846619 has a factor: 750531428489359189847 (69.346 bits)
M4447783 has a factor: 720799093240380581617 (69.288 bits)
M1939369 has a factor: 352771742435666772041 (68.257 bits)
M2038427 has a factor: 248788095760146768713 (67.753 bits)
M4989221 has a factor: 206846085687580790783 (67.487 bits)
M4285157 has a factor: 163477249381331085007 (67.148 bits)
M4758833 has a factor: 134901191993548441337 (66.870 bits)
M4265399 has a factor: 99426025308718861169 (66.430 bits)
M4877069 has a factor: 94685602352559708319 (66.360 bits)
M4940231 has a factor: 86654422208117252143 (66.232 bits)
M2033201 has a factor: 80997463657185938729 (66.135 bits)
M4781167 has a factor: 75834340094709213617 (66.039 bits)
M4825897 has a factor: 70411024889699098393 (65.932 bits)

For copy-paste to forum:

[M]M57737[/M] has a 133.083-bit (41-digit) factor: [url=https://www.mersenne.ca/M57737]11537561664921293410375362319770507040529[/url] (ECM,Sigma=4621399536870842)
[M]M2877313[/M] has a 95.811-bit (29-digit) factor: [url=https://www.mersenne.ca/M2877313]69507560923196210480888074711[/url] (ECM,Sigma=3397321108108159)
[M]M4259719[/M] has a 95.087-bit (29-digit) factor: [url=https://www.mersenne.ca/M4259719]42064598913909897502235095841[/url] (ECM,B1=50000,B2=5000000)
[M]M2493019[/M] has a 88.720-bit (27-digit) factor: [url=https://www.mersenne.ca/M2493019]509859358036878824124508583[/url] (ECM,Sigma=7936129733079473)
[M]M4925233[/M] has a 84.458-bit (26-digit) factor: [url=https://www.mersenne.ca/M4925233]26573471429190168951924551[/url] (ECM,Sigma=44086189899606)
[M]M2114041[/M] has a 83.097-bit (26-digit) factor: [url=https://www.mersenne.ca/M2114041]10341489349590238600097009[/url] (ECM,Sigma=2556163702618406)
[M]M4916489[/M] has a 82.997-bit (25-digit) factor: [url=https://www.mersenne.ca/M4916489]9650820110044454986419673[/url] (ECM,Sigma=8451024955157200)
[M]M2883197[/M] has a 81.338-bit (25-digit) factor: [url=https://www.mersenne.ca/M2883197]3057036999633536881781401[/url] (ECM,Sigma=6284866987323648)
[M]M2844329[/M] has a 81.051-bit (25-digit) factor: [url=https://www.mersenne.ca/M2844329]2504994664535115057737671[/url] (ECM,B1=50000,B2=6450000,Sigma=4299198801814209)
[M]M2551961[/M] has a 79.609-bit (24-digit) factor: [url=https://www.mersenne.ca/M2551961]921985105949998780606759[/url] (ECM,Sigma=4594402959334037)
[M]M2041387[/M] has a 79.586-bit (24-digit) factor: [url=https://www.mersenne.ca/M2041387]907270105266141852166649[/url] (ECM,Sigma=4826566978703349)
[M]M2026447[/M] has a 79.352-bit (24-digit) factor: [url=https://www.mersenne.ca/M2026447]771637974438370204868713[/url] (ECM,B1=50000,B2=5000000)
[M]M3235657[/M] has a 79.280-bit (24-digit) factor: [url=https://www.mersenne.ca/M3235657]733788008250238919421559[/url] (ECM,B1=50000,B2=5000000)
[M]M2071921[/M] has a 79.038-bit (24-digit) factor: [url=https://www.mersenne.ca/M2071921]620735442860658177877249[/url] (ECM,Sigma=3399897348106653)
[M]M4413443[/M] has a 78.818-bit (24-digit) factor: [url=https://www.mersenne.ca/M4413443]532768015169301994846903[/url] (ECM,B1=50000,B2=5000000)
[M]M3034159[/M] has a 78.458-bit (24-digit) factor: [url=https://www.mersenne.ca/M3034159]415171369167192164453623[/url] (ECM,B1=50000,B2=7150000,Sigma=1236525154633432)
[M]M4412393[/M] has a 78.351-bit (24-digit) factor: [url=https://www.mersenne.ca/M4412393]385500567019477370756839[/url] (ECM,B1=50000,B2=5000000)
[M]M1927729[/M] has a 78.350-bit (24-digit) factor: [url=https://www.mersenne.ca/M1927729]385222133989788038416511[/url] (ECM,Sigma=2263219182527494)
[M]M1876643[/M] has a 76.731-bit (24-digit) factor: [url=https://www.mersenne.ca/M1876643]125445563459155900242383[/url] (ECM,Sigma=7288647708637615)
[M]M4820951[/M] has a 76.263-bit (23-digit) factor: [url=https://www.mersenne.ca/M4820951]90645486438263933098009[/url] (ECM,Sigma=8160457133309221)
[M]M4262849[/M] has a 75.937-bit (23-digit) factor: [url=https://www.mersenne.ca/M4262849]72334722309851011458911[/url] (ECM,B1=50000,B2=5000000)
[M]M4902757[/M] has a 75.879-bit (23-digit) factor: [url=https://www.mersenne.ca/M4902757]69455875811385452787241[/url] (ECM,Sigma=936881608818066)
[M]M4771289[/M] has a 75.829-bit (23-digit) factor: [url=https://www.mersenne.ca/M4771289]67113239761738634397617[/url] (ECM,B1=50000,B2=5000000)
[M]M2208103[/M] has a 75.678-bit (23-digit) factor: [url=https://www.mersenne.ca/M2208103]60429667995104541794231[/url] (ECM,B1=50000,B2=5000000)
[M]M4872577[/M] has a 74.232-bit (23-digit) factor: [url=https://www.mersenne.ca/M4872577]22181474900836604472263[/url] (ECM,Sigma=7712187434716700)
[M]M2771687[/M] has a 73.628-bit (23-digit) factor: [url=https://www.mersenne.ca/M2771687]14598320116385517948343[/url] (ECM,Sigma=8476693935539308)
[M]M1895027[/M] has a 73.538-bit (23-digit) factor: [url=https://www.mersenne.ca/M1895027]13709490211202623261199[/url] (ECM,Sigma=339903227806500)
[M]M2078117[/M] has a 73.341-bit (23-digit) factor: [url=https://www.mersenne.ca/M2078117]11965073613193252078673[/url] (ECM,Sigma=477398777156909)
[M]M1932247[/M] has a 72.351-bit (22-digit) factor: [url=https://www.mersenne.ca/M1932247]6021143858742648715999[/url] (ECM,Sigma=1489909143752980)
[M]M2936977[/M] has a 72.123-bit (22-digit) factor: [url=https://www.mersenne.ca/M2936977]5143032108295548753073[/url] (ECM,Sigma=7452167437933600)
[M]M2957413[/M] has a 71.558-bit (22-digit) factor: [url=https://www.mersenne.ca/M2957413]3477030292436152083839[/url] (ECM,Sigma=1748263314741983)
[M]M4982249[/M] has a 71.073-bit (22-digit) factor: [url=https://www.mersenne.ca/M4982249]2483048775967876158703[/url] (ECM,Sigma=3129580611621551)
[M]M2554039[/M] has a 70.846-bit (22-digit) factor: [url=https://www.mersenne.ca/M2554039]2122426097248114023599[/url] (ECM,Sigma=2076538561284253)
[M]M4954241[/M] has a 70.695-bit (22-digit) factor: [url=https://www.mersenne.ca/M4954241]1910734308085757947151[/url] (ECM,Sigma=1434568496032435)
[M]M18580729[/M] has a 70.324-bit (22-digit) factor: [url=https://www.mersenne.ca/M18580729]1478260124267394875863[/url] (ECM,B1=50000,B2=5000000)
[M]M1866251[/M] has a 70.261-bit (22-digit) factor: [url=https://www.mersenne.ca/M1866251]1415154887440116857113[/url] (ECM,Sigma=8692686765755672)
[M]M1847513[/M] has a 69.859-bit (22-digit) factor: [url=https://www.mersenne.ca/M1847513]1070632672751018929961[/url] (ECM,Sigma=5563585273800870)
[M]M1820633[/M] has a 69.804-bit (22-digit) factor: [url=https://www.mersenne.ca/M1820633]1030880081827185529481[/url] (ECM,Sigma=3789217196828133)
[M]M1996697[/M] has a 69.630-bit (21-digit) factor: [url=https://www.mersenne.ca/M1996697]913602888597019050271[/url] (ECM,Sigma=4738266462130843)
[M]M4903193[/M] has a 69.530-bit (21-digit) factor: [url=https://www.mersenne.ca/M4903193]852476699667258963727[/url] (ECM,Sigma=4567585523431123)
[M]M1789037[/M] has a 69.411-bit (21-digit) factor: [url=https://www.mersenne.ca/M1789037]785079896857770808993[/url] (ECM,Sigma=8299915363887160)
[M]M1846619[/M] has a 69.346-bit (21-digit) factor: [url=https://www.mersenne.ca/M1846619]750531428489359189847[/url] (ECM,Sigma=3410091824753842)
[M]M4447783[/M] has a 69.288-bit (21-digit) factor: [url=https://www.mersenne.ca/M4447783]720799093240380581617[/url] (ECM,B1=50000,B2=5000000)
[M]M1939369[/M] has a 68.257-bit (21-digit) factor: [url=https://www.mersenne.ca/M1939369]352771742435666772041[/url] (ECM,Sigma=2954058392957546)
[M]M2038427[/M] has a 67.753-bit (21-digit) factor: [url=https://www.mersenne.ca/M2038427]248788095760146768713[/url] (ECM,Sigma=3679669574090085)
[M]M4989221[/M] has a 67.487-bit (21-digit) factor: [url=https://www.mersenne.ca/M4989221]206846085687580790783[/url] (ECM,Sigma=7931040123589325)
[M]M4285157[/M] has a 67.148-bit (21-digit) factor: [url=https://www.mersenne.ca/M4285157]163477249381331085007[/url] (ECM,B1=50000,B2=5000000)
[M]M4758833[/M] has a 66.870-bit (21-digit) factor: [url=https://www.mersenne.ca/M4758833]134901191993548441337[/url] (ECM,B1=50000,B2=5000000)
[M]M4265399[/M] has a 66.430-bit (20-digit) factor: [url=https://www.mersenne.ca/M4265399]99426025308718861169[/url] (ECM,B1=50000,B2=5000000)
[M]M4877069[/M] has a 66.360-bit (20-digit) factor: [url=https://www.mersenne.ca/M4877069]94685602352559708319[/url] (ECM,Sigma=8204196106877924)
[M]M4940231[/M] has a 66.232-bit (20-digit) factor: [url=https://www.mersenne.ca/M4940231]86654422208117252143[/url] (ECM,Sigma=6810560609273900)
[M]M2033201[/M] has a 66.135-bit (20-digit) factor: [url=https://www.mersenne.ca/M2033201]80997463657185938729[/url] (ECM,Sigma=1015975790901328)
[M]M4781167[/M] has a 66.039-bit (20-digit) factor: [url=https://www.mersenne.ca/M4781167]75834340094709213617[/url] (ECM,B1=50000,B2=5000000)
[M]M4825897[/M] has a 65.932-bit (20-digit) factor: [url=https://www.mersenne.ca/M4825897]70411024889699098393[/url] (ECM,Sigma=4774872649934137)

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 J.R. Allen	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 J.R. Allen

#	User	Exponent	Factor	Digits	Bits ↓ *	Date
1	J.R. Allen	57737	11537561664921293410375362319770507040529	41	133.083	2020-08-24
2	J.R. Allen	2877313	69507560923196210480888074711	29	95.811	2020-10-07
3	J.R. Allen	4259719	42064598913909897502235095841	29	95.087	2019-01-02
4	J.R. Allen	2493019	509859358036878824124508583	27	88.720	2020-09-30
5	J.R. Allen	4925233	26573471429190168951924551	26	84.458	2019-08-11
6	J.R. Allen	2114041	10341489349590238600097009	26	83.097	2020-08-07
7	J.R. Allen	4916489	9650820110044454986419673	25	82.997	2019-08-07
8	J.R. Allen	2883197	3057036999633536881781401	25	81.338	2020-09-10
9	J.R. Allen	2844329	2504994664535115057737671	25	81.051	2022-08-18
10	J.R. Allen	2551961	921985105949998780606759	24	79.609	2020-08-05
11	J.R. Allen	2041387	907270105266141852166649	24	79.586	2020-10-01
12	J.R. Allen	2026447	771637974438370204868713	24	79.352	2017-11-12
13	J.R. Allen	3235657	733788008250238919421559	24	79.280	2019-05-07
14	J.R. Allen	2071921	620735442860658177877249	24	79.038	2019-08-07
15	J.R. Allen	4413443	532768015169301994846903	24	78.818	2019-01-17
16	J.R. Allen	3034159	415171369167192164453623	24	78.458	2023-08-13
17	J.R. Allen	4412393	385500567019477370756839	24	78.351	2019-01-18
18	J.R. Allen	1927729	385222133989788038416511	24	78.350	2019-12-07
19	J.R. Allen	1876643	125445563459155900242383	24	76.731	2020-10-09
20	J.R. Allen	4820951	90645486438263933098009	23	76.263	2019-06-12
21	J.R. Allen	4262849	72334722309851011458911	23	75.937	2019-01-02
22	J.R. Allen	4902757	69455875811385452787241	23	75.879	2019-07-30
23	J.R. Allen	4771289	67113239761738634397617	23	75.829	2019-05-15
24	J.R. Allen	2208103	60429667995104541794231	23	75.678	2017-11-15
25	J.R. Allen	4872577	22181474900836604472263	23	74.232	2019-07-14
26	J.R. Allen	2771687	14598320116385517948343	23	73.628	2020-10-13
27	J.R. Allen	1895027	13709490211202623261199	23	73.538	2020-10-08
28	J.R. Allen	2078117	11965073613193252078673	23	73.341	2020-01-28
29	J.R. Allen	1932247	6021143858742648715999	22	72.351	2019-12-26
30	J.R. Allen	2936977	5143032108295548753073	22	72.123	2020-11-05
31	J.R. Allen	2957413	3477030292436152083839	22	71.558	2020-09-14
32	J.R. Allen	4982249	2483048775967876158703	22	71.073	2019-08-30
33	J.R. Allen	2554039	2122426097248114023599	22	70.846	2020-10-09
34	J.R. Allen	4954241	1910734308085757947151	22	70.695	2019-08-19
35	J.R. Allen	18580729	1478260124267394875863	22	70.324	2019-01-22
36	J.R. Allen	1866251	1415154887440116857113	22	70.261	2020-10-16
37	J.R. Allen	1847513	1070632672751018929961	22	69.859	2020-10-16
38	J.R. Allen	1820633	1030880081827185529481	22	69.804	2020-10-08
39	J.R. Allen	1996697	913602888597019050271	21	69.630	2020-01-15
40	J.R. Allen	4903193	852476699667258963727	21	69.530	2019-07-31
41	J.R. Allen	1789037	785079896857770808993	21	69.411	2019-11-29
42	J.R. Allen	1846619	750531428489359189847	21	69.346	2020-06-08
43	J.R. Allen	4447783	720799093240380581617	21	69.288	2019-01-20
44	J.R. Allen	1939369	352771742435666772041	21	68.257	2019-12-11
45	J.R. Allen	2038427	248788095760146768713	21	67.753	2019-06-23
46	J.R. Allen	4989221	206846085687580790783	21	67.487	2019-08-31
47	J.R. Allen	4285157	163477249381331085007	21	67.148	2019-01-04
48	J.R. Allen	4758833	134901191993548441337	21	66.870	2019-05-11
49	J.R. Allen	4265399	99426025308718861169	20	66.430	2019-01-03
50	J.R. Allen	4877069	94685602352559708319	20	66.360	2019-07-16
51	J.R. Allen	4940231	86654422208117252143	20	66.232	2019-08-16
52	J.R. Allen	2033201	80997463657185938729	20	66.135	2019-06-16
53	J.R. Allen	4781167	75834340094709213617	20	66.039	2019-05-20
54	J.R. Allen	4825897	70411024889699098393	20	65.932	2019-06-15