34 959 637 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 =	395000
B2 =	4740000

Status	Date	User	Residue	Shift	Software
Verified	2006-01-01	Slawomir Zurek	A42B481221B223DE	7333302	Windows,Prime95,v24 final,(aka Wc1)
Verified	2015-10-08	Dubslow	A42B481221B223DE	21835816	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: 72-73
2019-11-08	-anonymous-	NF	no factor TF: 71-72
2015-10-08	Dubslow	C-LL	A42B481221B223DE
2014-05-07	Gordon Spence	NF	no factor TF: 70-71
2014-05-01	Stef42	NF	no factor TF: 69-70
2012-02-16	Craig Meyers	NF	no factor TF: 67-69
2006-01-01	zulian	C-LL	A42B481221B223DE
2005-11-27	zulian	NF	no factor TF: 1-67
2005-11-27	zulian	NF-PM1	B1=395000, B2=4740000