34 959 137 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 2⁷¹

P-1

B1 =	365000
B2 =	4106250

Status	Date	User	Residue	Shift	Software
Verified	2007-06-15	Duane Risse	1B6A5F8431C9976A	34062750	Windows,Prime95,v24 final,(aka Wc1)
Verified	2015-12-01	Dubslow	1B6A5F8431C9976A	18852820	Linux 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2020-12-11	-anonymous-	NF	no factor TF: 74-75
2020-02-29	-anonymous-	NF	no factor TF: 73-74
2019-11-08	-anonymous-	NF	no factor TF: 71-72
2019-11-08	-anonymous-	NF	no factor TF: 72-73
2015-12-01	Dubslow	C-LL	1B6A5F8431C9976A
2014-05-05	Gordon Spence	NF	no factor TF: 70-71
2014-05-01	Stef42	NF	no factor TF: 69-70
2013-08-05	kracker	NF	no factor TF: 68-69
2007-06-15	-anonymous-	C-LL	1B6A5F8431C9976A
2005-12-12	-anonymous-	NF-PM1	B1=365000, B2=4106250
2005-12-12	-anonymous-	NF	no factor TF: 1-68