37 744 703 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	2007-07-04	C. Cooper / S. Boone	4BEE4EB2AAFBDFD8	35021408	Windows,Prime95,v23,NT service,(aka WZ5)
Verified	2016-09-21	Dubslow	4BEE4EB2AAFBDFD8	30678863	Linux 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2022-07-17	TheJudger	NF	no factor TF: 72-73
2022-05-09	Dylan Delgado	NF	no factor TF: 71-72
2016-09-21	Dubslow	C-LL	4BEE4EB2AAFBDFD8
2016-04-06	HBendtz	NF-PM1	B1=400000, B2=12000000, E=12
2014-11-29	Tim Sorbera	NF	no factor TF: 70-71
2014-10-11	Architects Cubed	NF	no factor TF: 69-70
2007-07-04	curtisc	C-LL	4BEE4EB2AAFBDFD8
2007-05-28	curtisc	NF	no factor TF: 1-69
2007-05-28	curtisc	NF-PM1	B1=540000
2006-05-29	ITS	NF	no factor TF: 1-67