34 548 931 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 =	500000
B2 =	9000000

Status	Date	User	Residue	Shift	Software
Verified	2005-09-03	Chris Hedden	5F74B9FEDC4A4C85	7869595	Windows,Prime95,v23,(aka WZ1)
Verified	2015-05-01	Dubslow	5F74B9FEDC4A4C85	7835702	Linux 64-bit,Prime95,v28.6,build 1

History

Date	User	Type	Result
2024-05-30	Chuck	NF	no factor TF: 68-69
2019-11-08	-anonymous-	NF	no factor TF: 71-72
2019-11-08	-anonymous-	NF	no factor TF: 72-73
2015-05-01	Dubslow	C-LL	5F74B9FEDC4A4C85
2015-02-09	HBendtz	NF-PM1	B1=500000, B2=9000000, E=12
2014-03-04	amphoria	NF	no factor TF: 69-70
2014-03-04	amphoria	NF	no factor TF: 70-71
2013-08-16	Carsten Kossendey	NF	no factor TF: 68-69
2005-09-03	-anonymous-	C-LL	5F74B9FEDC4A4C85
2005-05-28	DL	NF-PM1	B1=540000
2005-05-12	DL	NF	no factor TF: 1-68
2003-09-29	mdrg	NF	no factor TF: 1-62