25 543 033 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 =	3710000

Status	Date	User	Residue	Shift	Software
Bad	2005-09-22	Dr. Larry J. Paden	0FFD305FDF0CA802	10730299	Windows,Prime95,v22,(aka WY1)
Verified	2010-10-23	-anonymous-	7677F727565A4620	20842680	Windows,Prime95,v25.11,build 2
Verified	2012-05-10	Dubslow	7677F727565A4620	12916655	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
2021-06-25	mikr	NF	no factor TF: 70-71
2017-03-23	ramgeis	NF	no factor TF: 69-70
2012-05-10	Dubslow	C-LL	7677F727565A4620
2011-11-06	David Campeau	NF	no factor TF: 68-69
2011-11-02	Carsten Kossendey	NF	no factor TF: 67-68
2010-10-23	-anonymous-	C-LL	7677F727565A4620
2005-09-22	-anonymous-	C-LL	0FFD305FDF0CA802
2005-06-19	-anonymous-	NF-PM1	B1=280000, B2=3710000
2004-05-25	iPrime	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