39 215 731 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

No factors below 2⁷³

TF target 2⁷²

P-1

B1 =	345000
B2 =	1725000

Status	Date	User	Residue	Shift
Verified	2007-09-13	Gu Jianping	92D2B38B292D2701	5723129
Verified	2015-10-12	-Anonymous-	92D2B38B292D2701	759460

History

Date	User	Type	Result
2022-05-27	RichD0	NF	no factor from 2^72 to 2^73
2019-07-14	monst	NF	no factor from 2^71 to 2^72
2015-10-12	-Anonymous-	C-LL	92D2B38B292D2701
2014-12-14	Xyzzy	NF	no factor from 2^70 to 2^71
2014-12-14	Xyzzy	NF	no factor from 2^69 to 2^70

Username
Password