25 537 597 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 =	280000
B2 =	3500000

Status	Date	User	Residue	Shift	Software
Verified	2005-04-26	Seth Hoisington	CD12D56E219743D3	1082813	Windows,Prime95,v23,(aka WZ1)
Verified	2012-05-06	Dubslow	CD12D56E219743D3	13501436	Linux 64-bit,Prime95,v27.7,build 1

History

Date	User	Type	Result
2021-08-28	TheJudger	NF	no factor TF: 72-73
2021-08-28	TheJudger	NF	no factor TF: 71-72
2021-06-24	mikr	NF	no factor TF: 70-71
2017-03-23	ramgeis	NF	no factor TF: 69-70
2012-05-06	Dubslow	C-LL	CD12D56E219743D3
2011-11-27	bcp19	NF	no factor TF: 68-69
2011-11-25	Carsten Kossendey	NF	no factor TF: 67-68
2005-04-26	-anonymous-	C-LL	CD12D56E219743D3
2004-09-02	-anonymous-	NF-PM1	B1=280000, B2=3500000
2004-05-11	-anonymous-	NF	no factor TF: 1-67
2002-02-17	Matt	NF	no factor TF: 1-57
2001-08-12	Net_Force	NF	no factor TF: 1-56