25 195 213 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 2⁷⁴

TF target 2⁷⁰

P-1

B1 =	295000
B2 =	7080000

Status	Date	User	Residue	Shift	Software
Bad	2004-10-03	Troy Wu	04E08D4D24BD5077	22924921	Windows,Prime95,v23,(aka WZ1)
Verified	2006-03-14	Chun sung soo	072CCA439D9DDC5B	8000809	Windows,Prime95,v24 final,(aka Wc1)
Verified	2011-12-29	Dubslow	072CCA439D9DDC5B	12861231	Windows 64-bit,Prime95,v26.6,build 3

History

Date	User	Type	Result
2024-05-12	James Heinrich	NF	no factor TF: 68-69
2021-09-13	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
2021-06-09	mikr	NF	no factor TF: 70-71
2017-03-19	ramgeis	NF	no factor TF: 69-70
2011-12-29	Dubslow	C-LL	072CCA439D9DDC5B
2011-11-25	Carsten Kossendey	NF	no factor TF: 68-69
2011-11-22	Carsten Kossendey	NF	no factor TF: 67-68
2006-03-14	Chun sung soo	C-LL	072CCA439D9DDC5B
2004-10-03	-anonymous-	C-LL	04E08D4D24BD5077
2004-08-06	-anonymous-	NF-PM1	B1=295000, B2=7080000
2004-04-20	Graeme Willoughby	NF	no factor TF: 1-67
2003-12-23	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