34 959 469 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 =	340000
B2 =	2635000

Status	Date	User	Residue	Shift	Software
Verified	2006-02-01	Anders Neld	8DFD280CB7D3FA59	13334360	Windows,Prime95,v23,(aka WZ1)
Verified	2015-10-09	Dubslow	8DFD280CB7D3FA59	313442	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
2015-10-09	Dubslow	C-LL	8DFD280CB7D3FA59
2014-05-07	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
2006-02-01	-anonymous-	C-LL	8DFD280CB7D3FA59
2005-12-12	-anonymous-	NF-PM1	B1=340000, B2=2635000
2005-11-27	-anonymous-	NF	no factor TF: 1-68