34 959 767 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 =	420000
B2 =	8610000

Status	Date	User	Residue	Shift	Software
Verified	2006-03-14	Jeff Dawson	F5CF407D95EB2B81	13983258	Windows,Prime95,v24 final,(aka Wc1)
Verified	2015-10-08	Dubslow	F5CF407D95EB2B81	20104525	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
2015-10-08	Dubslow	C-LL	F5CF407D95EB2B81
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
2006-03-14	-anonymous-	C-LL	F5CF407D95EB2B81
2005-12-12	MrWizard	NF-PM1	B1=420000, B2=8610000
2005-11-27	MrWizard	NF	no factor TF: 1-67