25 147 229 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 =	6932500

Status	Date	User	Residue	Shift	Software
Verified	2004-11-22	Rick DeHaven	5D73B60050FE43AF	17191083	Windows,Prime95,v23,(aka WZ1)
Verified	2011-05-27	Reed_Young	5D73B60050FE43AF	7719053	Linux 64-bit,Prime95,v25.9,build 4

History

Date	User	Type	Result
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
2021-06-06	mikr	NF	no factor TF: 70-71
2017-06-11	ramgeis	NF	no factor TF: 68-69
2017-06-11	ramgeis	NF	no factor TF: 69-70
2015-12-28	VictordeHollander	NF	no factor TF: 67-68
2011-05-27	Reed_Young	C-LL	5D73B60050FE43AF
2004-11-22	-anonymous-	C-LL	5D73B60050FE43AF
2004-11-03	-anonymous-	NF-PM1	B1=295000, B2=6932500
2004-04-09	korva	NF	no factor TF: 1-67
2003-12-13	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