25 831 787 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 2⁷³

TF target 2⁷⁰

P-1

B1 =	275000
B2 =	2956250

Status	Date	User	Residue	Shift	Software
Verified	2004-11-03	Aaron Zod	9067B5DE81D132EA	14651788	Windows,Prime95,v23,NT service,(aka WZ5)
Verified	2012-05-18	Jerry Hallett	9067B5DE81D132EA	9467961	Windows 64-bit,Prime95,v26,(aka We4)
Bad	2012-05-18	Dubslow	7F72590E8CE2ECBF	0	CUDALucas v2.00a

History

Date	User	Type	Result
2021-08-26	TheJudger	NF	no factor TF: 72-73
2012-05-18	Dubslow	C-LL	7F72590E8CE2ECBF
2012-05-18	Jerry Hallett	C-LL	9067B5DE81D132EA
2012-05-16	Redarm	NF	no factor TF: 71-72
2012-05-16	Redarm	NF	no factor TF: 70-71
2012-05-16	Redarm	NF	no factor TF: 69-70
2011-12-18	bcp19	NF	no factor TF: 68-69
2011-10-14	Dubslow	NF	no factor TF: 67-68
2004-11-03	-anonymous-	C-LL	9067B5DE81D132EA
2004-10-03	-anonymous-	NF-PM1	B1=275000, B2=2956250
2004-06-21	S01103	NF	no factor TF: 1-67
2004-04-29	1997rj7	NF	no factor TF: 1-62
2001-08-12	Net_Force	NF	no factor TF: 1-56