26 664 977 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 =	7600000

Status	Date	User	Residue	Shift	Software
Verified	2006-12-18	Eastern Kentucky University	D5A71941DE1B65F4	1360965	Windows,Prime95,v24 final,(aka Wc1)
Verified	2012-07-23	Dubslow	D5A71941DE1B65F4	0	CUDALucas v2.04 Beta

History

Date	User	Type	Result
2021-09-19	TheJudger	NF	no factor TF: 73-74
2021-08-24	TheJudger	NF	no factor TF: 72-73
2021-08-24	TheJudger	NF	no factor TF: 71-72
2021-05-12	mikr	NF	no factor TF: 70-71
2017-04-18	ramgeis	NF	no factor TF: 69-70
2012-07-23	Dubslow	C-LL	D5A71941DE1B65F4
2011-12-30	bcp19	NF	no factor TF: 68-69
2011-10-27	Chuck	NF	no factor TF: 67-68
2006-12-18	-anonymous-	C-LL	D5A71941DE1B65F4
2006-11-28	-anonymous-	NF-PM1	B1=320000, B2=7600000
2004-11-30	sannerud.com	NF	no factor TF: 1-67
2004-07-02	-anonymous-	NF	no factor TF: 1-62
2004-06-04	-anonymous-	NF	no factor TF: 1-61