25 423 639 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 2⁷⁵

TF target 2⁷⁰

P-1

B1 =	290000
B2 =	6017500

Status	Date	User	Residue	Shift	Software
Verified	2004-10-03	Jeffrey Teekell	AB1FA0B86C7558D0	1195712	Windows,Prime95,v23,(aka WZ1)
Verified	2012-07-18	Dubslow	AB1FA0B86C7558D0	0	CUDALucas v2.04 Beta

History

Date	User	Type	Result
2021-10-17	TheJudger	NF	no factor TF: 74-75
2021-09-30	TheJudger	NF	no factor TF: 73-74
2021-08-28	TheJudger	NF	no factor TF: 72-73
2021-08-28	TheJudger	NF	no factor TF: 71-72
2021-06-17	mikr	NF	no factor TF: 70-71
2017-03-21	ramgeis	NF	no factor TF: 69-70
2012-07-18	Dubslow	C-LL	AB1FA0B86C7558D0
2012-02-27	garo	NF	no factor TF: 68-69
2011-10-26	David Campeau	NF	no factor TF: 67-68
2004-10-03	-anonymous-	C-LL	AB1FA0B86C7558D0
2004-08-20	-anonymous-	NF-PM1	B1=290000, B2=6017500
2004-05-25	-anonymous-	NF	no factor TF: 1-67
2004-02-23	markr	NF	no factor TF: 1-62
2001-11-03	Matt	NF	no factor TF: 1-58
2001-09-30	Matt	NF	no factor TF: 1-58
2001-08-12	Net_Force	NF	no factor TF: 1-56