25 534 721 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 =	1149000
B2 =	77163000

Status	Date	User	Residue	Shift	Software
Verified	2004-11-22	C. Cooper / S. Boone	5E9DF48112E94F79	3535681	Windows,Prime95,v23,NT service,(aka WZ5)
Verified	2012-05-03	Dubslow	5E9DF48112E94F79	19957072	Linux 64-bit,Prime95,v27.6,build 4

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
2021-05-22	Architects Cubed	NF-PM1	B1=1149000, B2=77163000
2017-03-23	ramgeis	NF	no factor TF: 69-70
2012-05-03	Dubslow	C-LL	5E9DF48112E94F79
2011-11-27	garo	NF	no factor TF: 68-69
2011-11-27	garo	NF	no factor TF: 67-68
2004-11-22	curtisc	C-LL	5E9DF48112E94F79
2004-11-03	-anonymous-	NF	no factor TF: 1-67
2004-11-03	curtisc	NF-PM1	B1=380000
2002-02-17	Matt	NF	no factor TF: 1-57
2001-08-12	Net_Force	NF	no factor TF: 1-56