26 790 719 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 2⁷⁰

P-1

B1 =	320000
B2 =	8480000

Status	Date	User	Residue	Shift	Software
Verified	2005-02-12	Frantz Gourdet	9A987728E53E46D1	1937612	Windows,Prime95,v22,(aka WY1)
Verified	2012-07-27	Dubslow	9A987728E53E46D1	0	CUDALucas v2.04 Beta

History

Date	User	Type	Result
2021-06-05	-anonymous-	NF	no factor TF: 73-74
2021-05-25	Sid & Andy	NF	no factor TF: 72-73
2021-05-25	Sid & Andy	NF	no factor TF: 71-72
2021-05-18	mikr	NF	no factor TF: 70-71
2017-04-11	ramgeis	NF	no factor TF: 69-70
2012-07-27	Dubslow	C-LL	9A987728E53E46D1
2011-11-17	Kyle Askine	NF	no factor TF: 68-69
2011-11-15	Carsten Kossendey	NF	no factor TF: 67-68
2005-02-12	-anonymous-	C-LL	9A987728E53E46D1
2004-12-13	-anonymous-	NF-PM1	B1=320000, B2=8480000
2004-10-03	PrimeCruncher	NF	no factor TF: 1-67
2004-07-02	markr	NF	no factor TF: 1-62