37 541 377 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	2008-05-22	Dmitry A. Solomatin	4A0F87E144A8CAED	19872086	Windows,Prime95,v24 final,(aka Wc1)
Verified	2016-09-07	Dubslow	4A0F87E144A8CAED	11499696	Linux 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2022-07-19	TheJudger	NF	no factor TF: 72-73
2022-05-18	Architects Cubed	NF	no factor TF: 71-72
2016-09-07	Dubslow	C-LL	4A0F87E144A8CAED
2016-03-08	HBendtz	NF-PM1	B1=400000, B2=12000000, E=12
2014-12-07	James Heinrich	NF	no factor TF: 70-71
2014-11-01	Andrew B	NF	no factor TF: 69-70
2013-06-02	kracker	NF	no factor TF: 68-69
2012-05-18	Carsten Kossendey	NF	no factor TF: 67-68
2008-06-02	-anonymous-	NF-PM1	B1=655000
2008-06-02	-anonymous-	C-LL	4A0F87E144A8CAED
2008-05-21	-anonymous-	C-LL	4A0F87E144A8CAED
2008-04-03	-anonymous-	NF-PM1	B1=655000
2006-04-28	-anonymous-	NF	no factor TF: 1-67