34 564 399 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	2005-11-01	Gabriel Massip	C518088875C47ABC	18532850	Windows,Prime95,v23,(aka WZ1)
Verified	2015-08-25	BigBrother	C518088875C47ABC	28171072	Windows 64-bit,Prime95,v28.5,build 1
Verified	2015-09-09	Dubslow	C518088875C47ABC	22534578	Linux 64-bit,Prime95,v28.6,build 1

History

Date	User	Type	Result
2024-05-25	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	C518088875C47ABC
2015-08-25	BigBrother	C-LL	C518088875C47ABC
2015-02-11	HBendtz	NF-PM1	B1=500000, B2=9000000, E=12
2014-08-22	monst	NF	no factor TF: 70-71
2014-06-29	VictordeHollander	NF	no factor TF: 69-70
2013-02-03	Carsten Kossendey	NF	no factor TF: 68-69
2005-11-01	Gabriel Massip	C-LL	C518088875C47ABC
2005-05-28	Gabriel Massip	NF-PM1	B1=540000
2005-05-12	Gabriel Massip	NF	no factor TF: 1-68
2003-10-08	mdrg	NF	no factor TF: 1-62