Mersenne ECM top factors

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M4254763 has a factor: 2575678132901731989127210010033 (101.023 bits)
M2189227 has a factor: 264480885707234669151718993 (87.773 bits)
M1152517 has a factor: 90247018872937573802926559 (86.222 bits)
M2235067 has a factor: 51473535390177885642475537 (85.412 bits)
M2138569 has a factor: 276869338044410576072159 (77.874 bits)
M4251809 has a factor: 29581968470029652590663 (74.647 bits)
M1865551 has a factor: 25301859615022849943737 (74.422 bits)
M1150927 has a factor: 5819577457051932186961 (72.301 bits)
M2225627 has a factor: 4421699604687113629663 (71.905 bits)
M2133433 has a factor: 656677618266405987023 (69.154 bits)
M1400261 has a factor: 340574465508226404407 (68.207 bits)
M2142823 has a factor: 307316412393289674247 (68.058 bits)
M2731591 has a factor: 293843355527119790303 (67.994 bits)
M2157007 has a factor: 257486897759052525457 (67.803 bits)
M2225407 has a factor: 229736963881431536207 (67.639 bits)
M4253429 has a factor: 51294930425738343649 (65.475 bits)
M2225621 has a factor: 27950438069349506287 (64.600 bits)
M1843981 has a factor: 10757439541122043831 (63.222 bits)
M4253203 has a factor: 9558873679937484919 (63.052 bits)
M2245739 has a factor: 4989331022674580143 (62.114 bits)
M1254541 has a factor: 4588026375605865391 (61.993 bits)
M1304591 has a factor: 4546482256859000023 (61.979 bits)
M1113451 has a factor: 4170854599922911487 (61.855 bits)
M1252681 has a factor: 4011629598048926927 (61.799 bits)
M1263461 has a factor: 3952077222039910303 (61.777 bits)
M1346711 has a factor: 3770849062868423303 (61.710 bits)
M1297367 has a factor: 3760147112262102137 (61.705 bits)
M1157641 has a factor: 3702615791828197967 (61.683 bits)
M1351283 has a factor: 3218528222189108351 (61.481 bits)
M1257017 has a factor: 3036278758019240959 (61.397 bits)
M1116223 has a factor: 2787442178427215593 (61.274 bits)
M1355131 has a factor: 2725851426341013977 (61.241 bits)
M1209287 has a factor: 2661393523848450353 (61.207 bits)

For copy-paste to forum:

[M]M4254763[/M] has a 101.023-bit (31-digit) factor: [url=https://www.mersenne.ca/M4254763]2575678132901731989127210010033[/url] (ECM)
[M]M2189227[/M] has a 87.773-bit (27-digit) factor: [url=https://www.mersenne.ca/M2189227]264480885707234669151718993[/url] (ECM)
[M]M1152517[/M] has a 86.222-bit (26-digit) factor: [url=https://www.mersenne.ca/M1152517]90247018872937573802926559[/url] (ECM,B1=50000,B2=5000000)
[M]M2235067[/M] has a 85.412-bit (26-digit) factor: [url=https://www.mersenne.ca/M2235067]51473535390177885642475537[/url] (ECM)
[M]M2138569[/M] has a 77.874-bit (24-digit) factor: [url=https://www.mersenne.ca/M2138569]276869338044410576072159[/url] (ECM)
[M]M4251809[/M] has a 74.647-bit (23-digit) factor: [url=https://www.mersenne.ca/M4251809]29581968470029652590663[/url] (ECM)
[M]M1865551[/M] has a 74.422-bit (23-digit) factor: [url=https://www.mersenne.ca/M1865551]25301859615022849943737[/url] (ECM)
[M]M1150927[/M] has a 72.301-bit (22-digit) factor: [url=https://www.mersenne.ca/M1150927]5819577457051932186961[/url] (ECM,B1=50000,B2=5000000)
[M]M2225627[/M] has a 71.905-bit (22-digit) factor: [url=https://www.mersenne.ca/M2225627]4421699604687113629663[/url] (ECM)
[M]M2133433[/M] has a 69.154-bit (21-digit) factor: [url=https://www.mersenne.ca/M2133433]656677618266405987023[/url] (ECM)
[M]M1400261[/M] has a 68.207-bit (21-digit) factor: [url=https://www.mersenne.ca/M1400261]340574465508226404407[/url] (ECM,B1=50000,B2=5000000)
[M]M2142823[/M] has a 68.058-bit (21-digit) factor: [url=https://www.mersenne.ca/M2142823]307316412393289674247[/url] (ECM)
[M]M2731591[/M] has a 67.994-bit (21-digit) factor: [url=https://www.mersenne.ca/M2731591]293843355527119790303[/url] (ECM)
[M]M2157007[/M] has a 67.803-bit (21-digit) factor: [url=https://www.mersenne.ca/M2157007]257486897759052525457[/url] (ECM)
[M]M2225407[/M] has a 67.639-bit (21-digit) factor: [url=https://www.mersenne.ca/M2225407]229736963881431536207[/url] (ECM)
[M]M4253429[/M] has a 65.475-bit (20-digit) factor: [url=https://www.mersenne.ca/M4253429]51294930425738343649[/url] (ECM)
[M]M2225621[/M] has a 64.600-bit (20-digit) factor: [url=https://www.mersenne.ca/M2225621]27950438069349506287[/url] (ECM)
[M]M1843981[/M] has a 63.222-bit (20-digit) factor: [url=https://www.mersenne.ca/M1843981]10757439541122043831[/url] (ECM)
[M]M4253203[/M] has a 63.052-bit (19-digit) factor: [url=https://www.mersenne.ca/M4253203]9558873679937484919[/url] (ECM)
[M]M2245739[/M] has a 62.114-bit (19-digit) factor: [url=https://www.mersenne.ca/M2245739]4989331022674580143[/url] (ECM)
[M]M1254541[/M] has a 61.993-bit (19-digit) factor: [url=https://www.mersenne.ca/M1254541]4588026375605865391[/url] (ECM)
[M]M1304591[/M] has a 61.979-bit (19-digit) factor: [url=https://www.mersenne.ca/M1304591]4546482256859000023[/url] (ECM)
[M]M1113451[/M] has a 61.855-bit (19-digit) factor: [url=https://www.mersenne.ca/M1113451]4170854599922911487[/url] (ECM)
[M]M1252681[/M] has a 61.799-bit (19-digit) factor: [url=https://www.mersenne.ca/M1252681]4011629598048926927[/url] (ECM)
[M]M1263461[/M] has a 61.777-bit (19-digit) factor: [url=https://www.mersenne.ca/M1263461]3952077222039910303[/url] (ECM)
[M]M1346711[/M] has a 61.710-bit (19-digit) factor: [url=https://www.mersenne.ca/M1346711]3770849062868423303[/url] (ECM)
[M]M1297367[/M] has a 61.705-bit (19-digit) factor: [url=https://www.mersenne.ca/M1297367]3760147112262102137[/url] (ECM)
[M]M1157641[/M] has a 61.683-bit (19-digit) factor: [url=https://www.mersenne.ca/M1157641]3702615791828197967[/url] (ECM)
[M]M1351283[/M] has a 61.481-bit (19-digit) factor: [url=https://www.mersenne.ca/M1351283]3218528222189108351[/url] (ECM)
[M]M1257017[/M] has a 61.397-bit (19-digit) factor: [url=https://www.mersenne.ca/M1257017]3036278758019240959[/url] (ECM)
[M]M1116223[/M] has a 61.274-bit (19-digit) factor: [url=https://www.mersenne.ca/M1116223]2787442178427215593[/url] (ECM)
[M]M1355131[/M] has a 61.241-bit (19-digit) factor: [url=https://www.mersenne.ca/M1355131]2725851426341013977[/url] (ECM)
[M]M1209287[/M] has a 61.207-bit (19-digit) factor: [url=https://www.mersenne.ca/M1209287]2661393523848450353[/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 Xyzzy	nfs	ecm	p-1	p+1	any
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Top ECM factors of Mersenne numbers

Top ECM factors of all time for Xyzzy

#	User	Exponent	Factor	Digits	Bits ↓ *	Date
1	Xyzzy	4254763	2575678132901731989127210010033	31	101.023	2013-02-18
2	Xyzzy	2189227	264480885707234669151718993	27	87.773	2013-05-18
3	Xyzzy	1152517	90247018872937573802926559	26	86.222	2014-07-29
4	Xyzzy	2235067	51473535390177885642475537	26	85.412	2013-06-24
5	Xyzzy	2138569	276869338044410576072159	24	77.874	2013-04-21
6	Xyzzy	4251809	29581968470029652590663	23	74.647	2013-02-16
7	Xyzzy	1865551	25301859615022849943737	23	74.422	2013-02-12
8	Xyzzy	1150927	5819577457051932186961	22	72.301	2014-07-25
9	Xyzzy	2225627	4421699604687113629663	22	71.905	2013-06-15
10	Xyzzy	2133433	656677618266405987023	21	69.154	2013-04-20
11	Xyzzy	1400261	340574465508226404407	21	68.207	2014-07-22
12	Xyzzy	2142823	307316412393289674247	21	68.058	2013-04-23
13	Xyzzy	2731591	293843355527119790303	21	67.994	2013-02-15
14	Xyzzy	2157007	257486897759052525457	21	67.803	2013-04-27
15	Xyzzy	2225407	229736963881431536207	21	67.639	2013-06-14
16	Xyzzy	4253429	51294930425738343649	20	65.475	2013-02-17
17	Xyzzy	2225621	27950438069349506287	20	64.600	2013-06-18
18	Xyzzy	1843981	10757439541122043831	20	63.222	2011-05-07
19	Xyzzy	4253203	9558873679937484919	19	63.052	2013-02-17
20	Xyzzy	2245739	4989331022674580143	19	62.114	2008-12-24
21	Xyzzy	1254541	4588026375605865391	19	61.993	2011-05-09
22	Xyzzy	1304591	4546482256859000023	19	61.979	2011-05-09
23	Xyzzy	1113451	4170854599922911487	19	61.855	2011-05-09
24	Xyzzy	1252681	4011629598048926927	19	61.799	2011-05-09
25	Xyzzy	1263461	3952077222039910303	19	61.777	2011-05-09
26	Xyzzy	1346711	3770849062868423303	19	61.710	2011-05-09
27	Xyzzy	1297367	3760147112262102137	19	61.705	2011-05-09
28	Xyzzy	1157641	3702615791828197967	19	61.683	2011-05-09
29	Xyzzy	1351283	3218528222189108351	19	61.481	2011-05-09
30	Xyzzy	1257017	3036278758019240959	19	61.397	2011-05-09
31	Xyzzy	1116223	2787442178427215593	19	61.274	2011-05-09
32	Xyzzy	1355131	2725851426341013977	19	61.241	2011-05-09
33	Xyzzy	1209287	2661393523848450353	19	61.207	2011-05-09