Mersenne P-1 top factors

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M237959 has a factor: 8069793616575708974657372316228989319881 (132.568 bits)
M242621 has a factor: 92440589134404124659485945513627206001 (126.120 bits)
M588167 has a factor: 249114413050510744401000417680062663 (117.584 bits)
M572749 has a factor: 120842045067398554452360803494218289 (116.541 bits)
M90646223 has a factor: 5353927286164491335757237684400151 (112.044 bits)
M571867 has a factor: 44588113551716409849927669965071 (105.136 bits)
M75916189 has a factor: 1278879581467274749622430134873 (100.013 bits)
M238877 has a factor: 595862833345431191795927570929 (98.911 bits)
M285139 has a factor: 130694295126341322287527289959 (96.722 bits)
M287939 has a factor: 27265853414344474964957059537 (94.461 bits)
M562477 has a factor: 21059667550148351339856802703 (94.088 bits)
M77737783 has a factor: 20300718086145719455127119607 (94.036 bits)
M560639 has a factor: 14213709760411250961578540191 (93.521 bits)
M90123337 has a factor: 13890000400564123172578077887 (93.488 bits)
M90647771 has a factor: 2677272799786635170964512633 (91.113 bits)
M562949 has a factor: 1315057329342557909228487503 (90.087 bits)
M90127027 has a factor: 91623425964317652949421089 (86.244 bits)
M581557 has a factor: 468156392271272710538903 (78.631 bits)
M98695889 has a factor: 60106888462177910759167 (75.670 bits)
M49094197 has a factor: 23163593763277284487567 (74.294 bits)

For copy-paste to forum:

[M]M237959[/M] has a 132.568-bit (40-digit) factor: [url=https://www.mersenne.ca/M237959]8069793616575708974657372316228989319881[/url] (P-1,B1=100000000,B2=2000000000,E=12)
[M]M242621[/M] has a 126.120-bit (38-digit) factor: [url=https://www.mersenne.ca/M242621]92440589134404124659485945513627206001[/url] (P-1,B1=100000000,B2=2000000000,E=12)
[M]M588167[/M] has a 117.584-bit (36-digit) factor: [url=https://www.mersenne.ca/M588167]249114413050510744401000417680062663[/url] (P-1,B1=10000000,B2=400000000,E=12)
[M]M572749[/M] has a 116.541-bit (36-digit) factor: [url=https://www.mersenne.ca/M572749]120842045067398554452360803494218289[/url] (P-1,B1=10000000,B2=400000000,E=12)
[M]M90646223[/M] has a 112.044-bit (34-digit) factor: [url=https://www.mersenne.ca/M90646223]5353927286164491335757237684400151[/url] (P-1,B1=695000,B2=12683750)
[M]M571867[/M] has a 105.136-bit (32-digit) factor: [url=https://www.mersenne.ca/M571867]44588113551716409849927669965071[/url] (P-1,B1=10000000,B2=400000000,E=12)
[M]M75916189[/M] has a 100.013-bit (31-digit) factor: [url=https://www.mersenne.ca/M75916189]1278879581467274749622430134873[/url] (P-1,B1=630000,B2=630000)
[M]M238877[/M] has a 98.911-bit (30-digit) factor: [url=https://www.mersenne.ca/M238877]595862833345431191795927570929[/url] (P-1,B1=100000000,B2=2000000000,E=12)
[M]M285139[/M] has a 96.722-bit (30-digit) factor: [url=https://www.mersenne.ca/M285139]130694295126341322287527289959[/url] (P-1,B1=100000000,B2=2000000000,E=12)
[M]M287939[/M] has a 94.461-bit (29-digit) factor: [url=https://www.mersenne.ca/M287939]27265853414344474964957059537[/url] (P-1,B1=100000000,B2=2000000000,E=12)
[M]M562477[/M] has a 94.088-bit (29-digit) factor: [url=https://www.mersenne.ca/M562477]21059667550148351339856802703[/url] (P-1,B1=10000000,B2=400000000,E=12)
[M]M77737783[/M] has a 94.036-bit (29-digit) factor: [url=https://www.mersenne.ca/M77737783]20300718086145719455127119607[/url] (P-1,B1=655000,B2=12936250,E=6)
[M]M560639[/M] has a 93.521-bit (29-digit) factor: [url=https://www.mersenne.ca/M560639]14213709760411250961578540191[/url] (P-1,B1=10000000,B2=400000000,E=12)
[M]M90123337[/M] has a 93.488-bit (29-digit) factor: [url=https://www.mersenne.ca/M90123337]13890000400564123172578077887[/url] (P-1,B1=680000,B2=12410000)
[M]M90647771[/M] has a 91.113-bit (28-digit) factor: [url=https://www.mersenne.ca/M90647771]2677272799786635170964512633[/url] (P-1,B1=695000,B2=12683750)
[M]M562949[/M] has a 90.087-bit (28-digit) factor: [url=https://www.mersenne.ca/M562949]1315057329342557909228487503[/url] (P-1,B1=10000000,B2=400000000,E=12)
[M]M90127027[/M] has a 86.244-bit (26-digit) factor: [url=https://www.mersenne.ca/M90127027]91623425964317652949421089[/url] (P-1,B1=680000,B2=680000)
[M]M581557[/M] has a 78.631-bit (24-digit) factor: [url=https://www.mersenne.ca/M581557]468156392271272710538903[/url] (P-1,B1=10000000,B2=400000000,E=12)
[M]M98695889[/M] has a 75.670-bit (23-digit) factor: [url=https://www.mersenne.ca/M98695889]60106888462177910759167[/url] (P-1,B1=970000,B2=970000)
[M]M49094197[/M] has a 74.294-bit (23-digit) factor: [url=https://www.mersenne.ca/M49094197]23163593763277284487567[/url] (P-1)

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 Alex	nfs	ecm	p-1	p+1	any
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Top P-1 factors of Mersenne numbers

Top P-1 factors of all time for Alex

#	User	Exponent	Factor	Digits	Bits ↓ *	Date
1	Alex	237959	8069793616575708974657372316228989319881	40	132.568	2019-04-06
2	Alex	242621	92440589134404124659485945513627206001	38	126.120	2019-04-16
3	alex	588167	249114413050510744401000417680062663	36	117.584	2019-05-06
4	alex	572749	120842045067398554452360803494218289	36	116.541	2019-04-17
5	alex	90646223	5353927286164491335757237684400151	34	112.044	2019-02-25
6	alex	571867	44588113551716409849927669965071	32	105.136	2019-04-16
7	alex	75916189	1278879581467274749622430134873	31	100.013	2016-05-01
8	Alex	238877	595862833345431191795927570929	30	98.911	2019-04-08
9	Alex	285139	130694295126341322287527289959	30	96.722	2019-05-09
10	Alex	287939	27265853414344474964957059537	29	94.461	2019-04-01
11	alex	562477	21059667550148351339856802703	29	94.088	2019-04-10
12	alex	77737783	20300718086145719455127119607	29	94.036	2016-05-12
13	alex	560639	14213709760411250961578540191	29	93.521	2019-04-08
14	alex	90123337	13890000400564123172578077887	29	93.488	2019-02-23
15	alex	90647771	2677272799786635170964512633	28	91.113	2019-02-20
16	alex	562949	1315057329342557909228487503	28	90.087	2019-04-10
17	alex	90127027	91623425964317652949421089	26	86.244	2019-02-23
18	alex	581557	468156392271272710538903	24	78.631	2019-04-27
19	Alex	98695889	60106888462177910759167	23	75.670	2019-10-19
20	Alex	49094197	23163593763277284487567	23	74.294	2010-11-13