34 564 379 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 2⁷³

TF target 2⁷¹

P-1

B1 =	385000
B2 =	7315000

Status	Date	User	Residue	Shift	Software
Verified	2005-07-01	Paolo Fani	77A3E5018FF35CEC	24016017	Windows,Prime95,v24 middle,(aka Wb1)
Verified	2015-08-21	owftheevil	77A3E5018FF35CEC	25244490	CUDALucas v2.05.1
Verified	2015-09-09	Dubslow	77A3E5018FF35CEC	13223660	Linux 64-bit,Prime95,v28.6,build 1

History

Date	User	Type	Result
2024-05-30	Chuck	NF	no factor TF: 68-69
2019-10-27	-anonymous-	NF	no factor TF: 72-73
2019-10-27	-anonymous-	NF	no factor TF: 71-72
2015-09-09	Dubslow	C-LL	77A3E5018FF35CEC
2015-08-21	owftheevil	C-LL	77A3E5018FF35CEC
2014-08-22	monst	NF	no factor TF: 70-71
2014-06-29	VictordeHollander	NF	no factor TF: 69-70
2013-08-16	Carsten Kossendey	NF	no factor TF: 68-69
2005-07-01	Ed Straker	C-LL	77A3E5018FF35CEC
2005-05-12	Ed Straker	NF	no factor TF: 1-68
2005-05-12	Ed Straker	NF-PM1	B1=385000, B2=7315000
2003-10-08	mdrg	NF	no factor TF: 1-62