49 596 647 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁴

TF target 2⁷³

P-1

B1 =	515000
B2 =	11201250

Status	Date	User	Residue	Shift
Verified	2012-05-07	borgyg	873375CD6BA87DDB	15999198
Verified	2019-12-05	Evgeniy Zavialov	873375CD6BA87DDB	42688937

History

Date	User	Type	Result
2019-12-05	Evgeniy Zavialov	C-LL	873375CD6BA87DDB
2019-07-06	-Anonymous-	NF	no factor from 2^73 to 2^74
2017-12-09	Sid & Andy	NF	no factor from 2^72 to 2^73
2012-05-07	borgyg	C-LL	873375CD6BA87DDB
2011-12-10	Aaron Haviland	NF	no factor from 2^71 to 2^72
2011-11-18	Sid & Andy	NF-PM1	B1=515000, B2=11201250, E=6
2011-11-09	Kyle Askine	NF	no factor from 2^70 to 2^71
2011-11-09	Kyle Askine	NF	no factor from 2^69 to 2^70