25 948 297 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 =	285000
B2 =	3633750

Status	Date	User	Residue	Shift	Software
Verified	2005-08-01	D. Waller	14B2D10328272138	12114176	Windows,Prime95,v24 final,(aka Wc1)
Verified	2012-05-08	Dubslow	14B2D10328272138	0	CUDALucas v2.00a

History

Date	User	Type	Result
2021-10-17	TheJudger	NF	no factor TF: 74-75
2021-09-19	TheJudger	NF	no factor TF: 73-74
2021-08-26	TheJudger	NF	no factor TF: 72-73
2021-08-26	TheJudger	NF	no factor TF: 71-72
2021-07-23	mikr	NF	no factor TF: 70-71
2017-03-28	ramgeis	NF	no factor TF: 69-70
2012-05-08	Dubslow	C-LL	14B2D10328272138
2011-11-24	David Campeau	NF	no factor TF: 68-69
2011-08-13	Carsten Kossendey	NF	no factor TF: 67-68
2005-08-01	DrRocket	C-LL	14B2D10328272138
2005-07-01	DrRocket	NF-PM1	B1=285000, B2=3633750
2004-07-02	-anonymous-	NF	no factor TF: 1-67
2004-04-29	-anonymous-	NF	no factor TF: 1-62
2001-08-12	Net_Force	NF	no factor TF: 1-56