Mersenne ECM top factors

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M149689 has a factor: 2591549754263739127529922536314607 (110.997 bits)
M237509 has a factor: 108593279472943405734887151213671 (106.421 bits)
M198503 has a factor: 83926239294508150065214479352153 (106.049 bits)
M255971 has a factor: 69535498222814385723733792463041 (105.778 bits)
M229529 has a factor: 576632692450391583295499509609 (98.864 bits)
M224911 has a factor: 457677886290097815964677157121 (98.530 bits)
M208003 has a factor: 131620825500278933393396560129 (96.732 bits)
M210019 has a factor: 39065007718983675263540783239 (94.980 bits)
M217499 has a factor: 26898433227432340541227527391 (94.442 bits)
M523969 has a factor: 13820704234395952787492856247 (93.481 bits)
M411449 has a factor: 6994227854050362062309475097 (92.498 bits)
M276499 has a factor: 2275825911039767800839004927 (90.878 bits)
M214939 has a factor: 1573726365911217799803969791 (90.346 bits)
M217727 has a factor: 1169948273850107346081893303 (89.919 bits)
M245821 has a factor: 261872872720031115869375839 (87.759 bits)
M273727 has a factor: 170673783313092887460115313 (87.141 bits)
M267097 has a factor: 101042355626926521861055393 (86.385 bits)
M236479 has a factor: 57302940577196779347018887 (85.567 bits)
M273881 has a factor: 54747102352732580959608943 (85.501 bits)
M502553 has a factor: 4955156487242927907751087 (82.035 bits)
M245911 has a factor: 4181641682897399561170601 (81.790 bits)
M539003 has a factor: 1390388710313035409905081 (80.202 bits)
M229799 has a factor: 856656840251061918032999 (79.503 bits)
M468109 has a factor: 670682249324808206265617 (79.150 bits)
M431567 has a factor: 597738867031246954047569 (78.984 bits)
M275593 has a factor: 368757145537527664102279 (78.287 bits)
M367687 has a factor: 339173609158137638905871 (78.166 bits)
M429409 has a factor: 266492790227684889574231 (77.818 bits)
M382463 has a factor: 105422744166721935539023 (76.481 bits)
M433981 has a factor: 77450088165475027601999 (76.036 bits)
M387203 has a factor: 65887378887189415827553 (75.802 bits)
M376657 has a factor: 63057045939087796411817 (75.739 bits)
M513533 has a factor: 37013229800395476654001 (74.970 bits)
M435751 has a factor: 20201770451930522618809 (74.097 bits)
M398921 has a factor: 16295946290098072892743 (73.787 bits)
M418339 has a factor: 10585744317334701975857 (73.165 bits)
M385109 has a factor: 6059105072503826330063 (72.360 bits)
M369407 has a factor: 2477378267590041863807 (71.069 bits)
M421121 has a factor: 2229532175178171389089 (70.917 bits)
M515843 has a factor: 1133327592914991424241 (69.941 bits)
M440371 has a factor: 1111365064129775010047 (69.913 bits)
M420439 has a factor: 193389861943321015391 (67.390 bits)
M419537 has a factor: 115719753659886025553 (66.649 bits)
M368029 has a factor: 89527318155235057943 (66.279 bits)
M456151 has a factor: 77011913567676882359 (66.062 bits)
M409691 has a factor: 12081557456191923881 (63.389 bits)
M422551 has a factor: 7511173660889610223 (62.704 bits)
M408137 has a factor: 1881909411274001177 (60.707 bits)

For copy-paste to forum:

[M]M149689[/M] has a 110.997-bit (34-digit) factor: [url=https://www.mersenne.ca/M149689]2591549754263739127529922536314607[/url] (ECM)
[M]M237509[/M] has a 106.421-bit (33-digit) factor: [url=https://www.mersenne.ca/M237509]108593279472943405734887151213671[/url] (ECM)
[M]M198503[/M] has a 106.049-bit (32-digit) factor: [url=https://www.mersenne.ca/M198503]83926239294508150065214479352153[/url] (ECM)
[M]M255971[/M] has a 105.778-bit (32-digit) factor: [url=https://www.mersenne.ca/M255971]69535498222814385723733792463041[/url] (ECM)
[M]M229529[/M] has a 98.864-bit (30-digit) factor: [url=https://www.mersenne.ca/M229529]576632692450391583295499509609[/url] (ECM)
[M]M224911[/M] has a 98.530-bit (30-digit) factor: [url=https://www.mersenne.ca/M224911]457677886290097815964677157121[/url] (ECM)
[M]M208003[/M] has a 96.732-bit (30-digit) factor: [url=https://www.mersenne.ca/M208003]131620825500278933393396560129[/url] (ECM)
[M]M210019[/M] has a 94.980-bit (29-digit) factor: [url=https://www.mersenne.ca/M210019]39065007718983675263540783239[/url] (ECM)
[M]M217499[/M] has a 94.442-bit (29-digit) factor: [url=https://www.mersenne.ca/M217499]26898433227432340541227527391[/url] (ECM)
[M]M523969[/M] has a 93.481-bit (29-digit) factor: [url=https://www.mersenne.ca/M523969]13820704234395952787492856247[/url] (ECM)
[M]M411449[/M] has a 92.498-bit (28-digit) factor: [url=https://www.mersenne.ca/M411449]6994227854050362062309475097[/url] (ECM)
[M]M276499[/M] has a 90.878-bit (28-digit) factor: [url=https://www.mersenne.ca/M276499]2275825911039767800839004927[/url] (ECM)
[M]M214939[/M] has a 90.346-bit (28-digit) factor: [url=https://www.mersenne.ca/M214939]1573726365911217799803969791[/url] (ECM)
[M]M217727[/M] has a 89.919-bit (28-digit) factor: [url=https://www.mersenne.ca/M217727]1169948273850107346081893303[/url] (ECM)
[M]M245821[/M] has a 87.759-bit (27-digit) factor: [url=https://www.mersenne.ca/M245821]261872872720031115869375839[/url] (ECM)
[M]M273727[/M] has a 87.141-bit (27-digit) factor: [url=https://www.mersenne.ca/M273727]170673783313092887460115313[/url] (ECM)
[M]M267097[/M] has a 86.385-bit (27-digit) factor: [url=https://www.mersenne.ca/M267097]101042355626926521861055393[/url] (ECM)
[M]M236479[/M] has a 85.567-bit (26-digit) factor: [url=https://www.mersenne.ca/M236479]57302940577196779347018887[/url] (ECM)
[M]M273881[/M] has a 85.501-bit (26-digit) factor: [url=https://www.mersenne.ca/M273881]54747102352732580959608943[/url] (ECM)
[M]M502553[/M] has a 82.035-bit (25-digit) factor: [url=https://www.mersenne.ca/M502553]4955156487242927907751087[/url] (ECM)
[M]M245911[/M] has a 81.790-bit (25-digit) factor: [url=https://www.mersenne.ca/M245911]4181641682897399561170601[/url] (ECM)
[M]M539003[/M] has a 80.202-bit (25-digit) factor: [url=https://www.mersenne.ca/M539003]1390388710313035409905081[/url] (ECM)
[M]M229799[/M] has a 79.503-bit (24-digit) factor: [url=https://www.mersenne.ca/M229799]856656840251061918032999[/url] (ECM)
[M]M468109[/M] has a 79.150-bit (24-digit) factor: [url=https://www.mersenne.ca/M468109]670682249324808206265617[/url] (ECM)
[M]M431567[/M] has a 78.984-bit (24-digit) factor: [url=https://www.mersenne.ca/M431567]597738867031246954047569[/url] (ECM)
[M]M275593[/M] has a 78.287-bit (24-digit) factor: [url=https://www.mersenne.ca/M275593]368757145537527664102279[/url] (ECM)
[M]M367687[/M] has a 78.166-bit (24-digit) factor: [url=https://www.mersenne.ca/M367687]339173609158137638905871[/url] (ECM)
[M]M429409[/M] has a 77.818-bit (24-digit) factor: [url=https://www.mersenne.ca/M429409]266492790227684889574231[/url] (ECM)
[M]M382463[/M] has a 76.481-bit (24-digit) factor: [url=https://www.mersenne.ca/M382463]105422744166721935539023[/url] (ECM)
[M]M433981[/M] has a 76.036-bit (23-digit) factor: [url=https://www.mersenne.ca/M433981]77450088165475027601999[/url] (ECM)
[M]M387203[/M] has a 75.802-bit (23-digit) factor: [url=https://www.mersenne.ca/M387203]65887378887189415827553[/url] (ECM)
[M]M376657[/M] has a 75.739-bit (23-digit) factor: [url=https://www.mersenne.ca/M376657]63057045939087796411817[/url] (ECM)
[M]M513533[/M] has a 74.970-bit (23-digit) factor: [url=https://www.mersenne.ca/M513533]37013229800395476654001[/url] (ECM)
[M]M435751[/M] has a 74.097-bit (23-digit) factor: [url=https://www.mersenne.ca/M435751]20201770451930522618809[/url] (ECM)
[M]M398921[/M] has a 73.787-bit (23-digit) factor: [url=https://www.mersenne.ca/M398921]16295946290098072892743[/url] (ECM)
[M]M418339[/M] has a 73.165-bit (23-digit) factor: [url=https://www.mersenne.ca/M418339]10585744317334701975857[/url] (ECM)
[M]M385109[/M] has a 72.360-bit (22-digit) factor: [url=https://www.mersenne.ca/M385109]6059105072503826330063[/url] (ECM)
[M]M369407[/M] has a 71.069-bit (22-digit) factor: [url=https://www.mersenne.ca/M369407]2477378267590041863807[/url] (ECM)
[M]M421121[/M] has a 70.917-bit (22-digit) factor: [url=https://www.mersenne.ca/M421121]2229532175178171389089[/url] (ECM)
[M]M515843[/M] has a 69.941-bit (22-digit) factor: [url=https://www.mersenne.ca/M515843]1133327592914991424241[/url] (ECM)
[M]M440371[/M] has a 69.913-bit (22-digit) factor: [url=https://www.mersenne.ca/M440371]1111365064129775010047[/url] (ECM)
[M]M420439[/M] has a 67.390-bit (21-digit) factor: [url=https://www.mersenne.ca/M420439]193389861943321015391[/url] (ECM)
[M]M419537[/M] has a 66.649-bit (21-digit) factor: [url=https://www.mersenne.ca/M419537]115719753659886025553[/url] (ECM)
[M]M368029[/M] has a 66.279-bit (20-digit) factor: [url=https://www.mersenne.ca/M368029]89527318155235057943[/url] (ECM)
[M]M456151[/M] has a 66.062-bit (20-digit) factor: [url=https://www.mersenne.ca/M456151]77011913567676882359[/url] (ECM)
[M]M409691[/M] has a 63.389-bit (20-digit) factor: [url=https://www.mersenne.ca/M409691]12081557456191923881[/url] (ECM)
[M]M422551[/M] has a 62.704-bit (19-digit) factor: [url=https://www.mersenne.ca/M422551]7511173660889610223[/url] (ECM)
[M]M408137[/M] has a 60.707-bit (19-digit) factor: [url=https://www.mersenne.ca/M408137]1881909411274001177[/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 David Bessell	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
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Top ECM factors of Mersenne numbers

Top ECM factors of all time for David Bessell

#	User	Exponent	Factor	Digits	Bits ↓ *	Date
1	David Bessell	149689	2591549754263739127529922536314607	34	110.997	2009-09-07
2	David Bessell	237509	108593279472943405734887151213671	33	106.421	2012-11-06
3	David Bessell	198503	83926239294508150065214479352153	32	106.049	2011-01-26
4	David Bessell	255971	69535498222814385723733792463041	32	105.778	2011-09-21
5	David Bessell	229529	576632692450391583295499509609	30	98.864	2011-09-18
6	David Bessell	224911	457677886290097815964677157121	30	98.530	2011-10-05
7	David Bessell	208003	131620825500278933393396560129	30	96.732	2010-08-27
8	David Bessell	210019	39065007718983675263540783239	29	94.980	2010-08-12
9	David Bessell	217499	26898433227432340541227527391	29	94.442	2012-01-28
10	David Bessell	523969	13820704234395952787492856247	29	93.481	2009-09-12
11	David Bessell	411449	6994227854050362062309475097	28	92.498	2010-04-10
12	David Bessell	276499	2275825911039767800839004927	28	90.878	2012-02-06
13	David Bessell	214939	1573726365911217799803969791	28	90.346	2012-10-21
14	David Bessell	217727	1169948273850107346081893303	28	89.919	2011-11-10
15	David Bessell	245821	261872872720031115869375839	27	87.759	2011-10-01
16	David Bessell	273727	170673783313092887460115313	27	87.141	2010-08-08
17	David Bessell	267097	101042355626926521861055393	27	86.385	2011-10-10
18	David Bessell	236479	57302940577196779347018887	26	85.567	2010-08-05
19	David Bessell	273881	54747102352732580959608943	26	85.501	2011-11-15
20	David Bessell	502553	4955156487242927907751087	25	82.035	2009-09-18
21	David Bessell	245911	4181641682897399561170601	25	81.790	2011-05-01
22	David Bessell	539003	1390388710313035409905081	25	80.202	2009-11-11
23	David Bessell	229799	856656840251061918032999	24	79.503	2012-11-11
24	David Bessell	468109	670682249324808206265617	24	79.150	2009-11-07
25	David Bessell	431567	597738867031246954047569	24	78.984	2010-03-31
26	David Bessell	275593	368757145537527664102279	24	78.287	2012-11-13
27	David Bessell	367687	339173609158137638905871	24	78.166	2009-11-20
28	David Bessell	429409	266492790227684889574231	24	77.818	2009-10-21
29	David Bessell	382463	105422744166721935539023	24	76.481	2010-03-29
30	David Bessell	433981	77450088165475027601999	23	76.036	2009-10-06
31	David Bessell	387203	65887378887189415827553	23	75.802	2009-11-22
32	David Bessell	376657	63057045939087796411817	23	75.739	2009-12-11
33	David Bessell	513533	37013229800395476654001	23	74.970	2009-10-15
34	David Bessell	435751	20201770451930522618809	23	74.097	2010-02-27
35	David Bessell	398921	16295946290098072892743	23	73.787	2010-03-23
36	David Bessell	418339	10585744317334701975857	23	73.165	2009-09-13
37	David Bessell	385109	6059105072503826330063	22	72.360	2010-02-24
38	David Bessell	369407	2477378267590041863807	22	71.069	2009-10-20
39	David Bessell	421121	2229532175178171389089	22	70.917	2009-10-02
40	David Bessell	515843	1133327592914991424241	22	69.941	2009-09-22
41	David Bessell	440371	1111365064129775010047	22	69.913	2009-11-26
42	David Bessell	420439	193389861943321015391	21	67.390	2009-10-31
43	David Bessell	419537	115719753659886025553	21	66.649	2009-11-17
44	David Bessell	368029	89527318155235057943	20	66.279	2009-10-25
45	David Bessell	456151	77011913567676882359	20	66.062	2009-11-20
46	David Bessell	409691	12081557456191923881	20	63.389	2009-11-07
47	David Bessell	422551	7511173660889610223	19	62.704	2009-09-16
48	David Bessell	408137	1881909411274001177	19	60.707	2010-03-26