34 443 389 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 =	1500000
B2 =	45000000

Status	Date	User	Residue	Shift	Software
Bad	2005-07-01	Robert J Alka	0E6EDD33BF035EE9	23557677	Windows,Prime95,v23,(aka WZ1)
Verified	2015-06-05	Dubslow	05BFBF705B63F92B	24401366	Linux 64-bit,Prime95,v28.6,build 1
Verified	2015-06-23	Henning Gerhardt	05BFBF705B63F92B	21048209	Windows 64-bit,Prime95,v28.6,build 1

History

Date	User	Type	Result
2024-05-30	Chuck	NF	no factor TF: 68-69
2021-10-31	Sid & Andy	NF	no factor TF: 74-75
2021-08-08	megavink	NF-PM1	B1=1500000, B2=45000000
2020-03-17	-anonymous-	NF	no factor TF: 73-74
2019-10-25	LaurV	NF	no factor TF: 72-73
2019-10-25	LaurV	NF	no factor TF: 71-72
2015-06-23	Henning Gerhardt	C-LL	05BFBF705B63F92B
2015-06-05	Dubslow	C-LL	05BFBF705B63F92B
2014-02-15	LaurV	NF	no factor TF: 70-71
2014-02-15	LaurV	NF	no factor TF: 69-70
2013-08-06	Carsten Kossendey	NF	no factor TF: 68-69
2005-07-01	-anonymous-	C-LL	0E6EDD33BF035EE9
2005-03-20	-anonymous-	NF-PM1	B1=395000, B2=9183750
2005-03-06	-anonymous-	NF	no factor TF: 1-68
2004-11-03	1997rj7	NF	no factor TF: 1-62
2003-11-28	-anonymous-	NF	no factor TF: 1-61