37 326 019 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 2⁷⁵

TF target 2⁷¹

P-1

B1 =	450000
B2 =	13050000

Status	Date	User	Residue	Shift	Software
Verified	2007-04-23	Anthony Charles Williams Jr	F4CDBF86E8BA3130	36368535	Windows 64-bit,Prime95,v24 final,(aka Wc4)
Verified	2016-06-12	Henrik Greschner	F4CDBF86E8BA3130	25202230	Windows 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2020-09-25	-anonymous-	NF	no factor TF: 74-75
2020-02-14	-anonymous-	NF	no factor TF: 73-74
2019-10-25	-anonymous-	NF	no factor TF: 72-73
2019-10-25	-anonymous-	NF	no factor TF: 71-72
2016-06-12	Henrik Greschner	C-LL	F4CDBF86E8BA3130
2013-07-09	Axelsson	NF	no factor TF: 70-71
2013-07-09	Axelsson	NF	no factor TF: 69-70
2013-07-09	Axelsson	NF	no factor TF: 68-69
2012-05-02	Carsten Kossendey	NF	no factor TF: 67-68
2007-04-23	Alby	C-LL	F4CDBF86E8BA3130
2007-04-07	Alby	NF-PM1	B1=450000, B2=13050000
2006-07-10	-anonymous-	NF	no factor TF: 1-67