25 225 489 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 =	270000
B2 =	3442500

Status	Date	User	Residue	Shift	Software
Verified	2005-03-06	Renee	1434A25A561B434A	3631750	Windows,Prime95,v23,(aka WZ1)
Verified	2012-04-27	Dubslow	1434A25A561B434A	1042398	Linux 64-bit,Prime95,v27.6,build 1

History

Date	User	Type	Result
2022-12-23	Sid & Andy	NF	no factor TF: 72-73
2021-01-08	-anonymous-	NF	no factor TF: 70-71
2021-01-08	-anonymous-	NF	no factor TF: 71-72
2017-04-25	ramgeis	NF	no factor TF: 69-70
2017-04-25	ramgeis	NF	no factor TF: 68-69
2016-01-04	VictordeHollander	NF	no factor TF: 67-68
2012-04-27	Dubslow	C-LL	1434A25A561B434A
2006-04-28	Torchwood Institute	NF	no factor TF: 1-67
2005-03-06	-anonymous-	C-LL	1434A25A561B434A
2005-02-02	-anonymous-	NF-PM1	B1=270000, B2=3442500
2004-04-20	Torchwood Institute	NF	no factor TF: 1-67
2003-12-31	markr	NF	no factor TF: 1-62
2001-08-24	Matt	NF	no factor TF: 1-58
2001-08-12	Net_Force	NF	no factor TF: 1-56