25 723 987 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 2⁷⁵

TF target 2⁷⁰

P-1

B1 =	912000
B2 =	47693000

Status	Date	User	Residue	Shift	Software
Verified	2005-01-10	Jeremy Buhler	C7D3EA998F589BC4	1340847	Linux 32-bit,Prime95,v23,(aka WZ2)
Verified	2012-06-01	Dubslow	C7D3EA998F589BC4	14591942	Linux 64-bit,Prime95,v27.7,build 2

History

Date	User	Type	Result
2021-10-25	Architects Cubed	NF-PM1	B1=912000, B2=47693000
2021-10-17	TheJudger	NF	no factor TF: 74-75
2021-09-19	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
2021-07-07	mikr	NF	no factor TF: 70-71
2017-03-26	ramgeis	NF	no factor TF: 69-70
2012-06-01	Dubslow	C-LL	C7D3EA998F589BC4
2011-12-18	bcp19	NF	no factor TF: 68-69
2011-10-13	Dubslow	NF	no factor TF: 67-68
2005-01-10	-anonymous-	C-LL	C7D3EA998F589BC4
2004-12-23	-anonymous-	NF-PM1	B1=380000
2004-06-12	tsc	NF	no factor TF: 1-67
2001-08-12	Net_Force	NF	no factor TF: 1-56