37 742 767 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 =	400000
B2 =	12000000

Status	Date	User	Residue	Shift	Software
Verified	2007-11-17	Schalk Coetzee	B975AAFA81D56D27	12140776	Windows,Prime95,v24 final,(aka Wc1)
Verified	2016-09-21	Dubslow	B975AAFA81D56D27	31348825	Linux 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2024-05-28	Naegi Makoto	NF	no factor TF: 68-69
2022-07-17	TheJudger	NF	no factor TF: 72-73
2022-05-09	Architects Cubed	NF	no factor TF: 71-72
2016-09-21	Dubslow	C-LL	B975AAFA81D56D27
2016-04-05	HBendtz	NF-PM1	B1=400000, B2=12000000, E=12
2014-11-03	chalsall	NF	no factor TF: 70-71
2014-10-07	Architects Cubed	NF	no factor TF: 69-70
2013-07-27	Carsten Kossendey	NF	no factor TF: 68-69
2012-04-09	Serge Batalov	NF	no factor TF: 67-68
2007-11-17	-anonymous-	C-LL	B975AAFA81D56D27
2007-09-13	-anonymous-	NF-PM1	B1=660000
2006-05-12	Team Prime Rib	NF	no factor TF: 1-67