62 572 387 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁴

TF target 2⁷⁴

P-1

B1 =	560000
B2 =	11060000

Status	Date	User	Residue	Shift	Software
Verified	2014-06-25	ANONYMOUS	BC0E9AD0E9071C94	32900058	Windows 64-bit,Prime95,v27.7,build 2
Verified	2023-01-27	Syntony	BC0E9AD0E9071C94	12868792	Windows 64-bit,Prime95,v30.7,build 9
Verified	2024-04-08	WadesWorld19	BC0E9AD0E9071C94	58902271	Windows 64-bit,Prime95,v29.8,build 6

History

Date	User	Type	Result
2024-04-08	WadesWorld19	C-LL	BC0E9AD0E9071C94
2023-01-27	Syntony	C-LL	BC0E9AD0E9071C94
2016-02-23	Mark Rose	NF	no factor TF: 59-63
2014-06-25	ANONYMOUS	C-LL	BC0E9AD0E9071C94
2013-10-12	James Heinrich	NF-PM1	B1=560000, B2=11060000, E=6
2013-10-07	Axelsson	NF	no factor TF: 73-74
2013-03-22	electron1897	NF	no factor TF: 72-73
2012-09-04	SWL551	NF	no factor TF: 71-72
2012-09-04	SWL551	NF	no factor TF: 70-71
2011-12-11	David Barley	NF	no factor TF: 69-70
2009-10-25	Quester	NF	no factor TF: 68-69
2009-02-22	Sturle Sunde	NF	no factor TF: 67-68
2009-02-21	Sturle Sunde	NF	no factor TF: 66-67
2009-02-21	symallad	NF	no factor TF: 65-66
2009-02-18	-anonymous-	NF	no factor TF: 64-65
2009-01-27	Wojciech Florek	NF	no factor TF: 63-64
2003-07-06	Gordon Spence	NF	no factor TF: 1-59