37 979 863 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 =	725000
B2 =	16312500

Status	Date	User	Residue	Shift	Software
Verified	2008-03-30	Jeff Woods	A81898E2C7D08EB9	15744139	Windows 64-bit,Prime95,v24 final,(aka Wc4)
Verified	2014-08-27	Dubslow	A81898E2C7D08EB9	3098833	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2024-05-26	LaurV	NF	no factor TF: 68-69
2022-07-05	RichD0	NF	no factor TF: 72-73
2018-05-29	Architects Cubed	NF-PM1	B1=725000, B2=16312500, E=12
2018-05-26	Architects Cubed	NF	no factor TF: 71-72
2014-08-27	Dubslow	C-LL	A81898E2C7D08EB9
2014-04-03	Jerry Hallett	NF	no factor TF: 70-71
2014-04-03	Jerry Hallett	NF	no factor TF: 69-70
2013-08-30	Carsten Kossendey	NF	no factor TF: 68-69
2008-03-29	ADBjester	C-LL	A81898E2C7D08EB9
2007-03-20	Amperio	NF-PM1	B1=610000
2006-05-29	-anonymous-	NF	no factor TF: 1-68