34 302 721 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 2⁷⁴

TF target 2⁷¹

P-1

B1 =	500000
B2 =	9000000

Status	Date	User	Residue	Shift	Software
Verified	2005-02-02	Irv Rosenfeld	43ECB698CA5BE96D	29980088	Windows,Prime95,v23,(aka WZ1)
Verified	2015-05-18	Dubslow	43ECB698CA5BE96D	14124971	Linux 64-bit,Prime95,v28.6,build 1

History

Date	User	Type	Result
2024-05-30	Chuck	NF	no factor TF: 68-69
2020-03-17	-anonymous-	NF	no factor TF: 73-74
2019-11-15	-anonymous-	NF	no factor TF: 71-72
2019-11-15	-anonymous-	NF	no factor TF: 72-73
2015-05-18	Dubslow	C-LL	43ECB698CA5BE96D
2015-01-14	HBendtz	NF-PM1	B1=500000, B2=9000000, E=12
2014-01-26	Jerry Hallett	NF	no factor TF: 70-71
2014-01-26	Jerry Hallett	NF	no factor TF: 69-70
2013-08-09	Carsten Kossendey	NF	no factor TF: 68-69
2005-02-02	-anonymous-	C-LL	43ECB698CA5BE96D
2005-01-10	-anonymous-	NF	no factor TF: 1-68
2005-01-10	-anonymous-	NF-PM1	B1=540000
2004-06-12	-anonymous-	NF	no factor TF: 1-62