7 940 627 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
156331787547630292601	21	67.1	2012-09-05 07:15:03

Status	Date	User	Residue	Shift
Verified (Factored)	2000-05-05	Nesdu Cut	B077DC74683CD65B	2927222
Verified (Factored)	2002-08-03	Ron Lavallee	B077DC74683CD65B	264498

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-06-11	Daniil Tsarkov	A6076AF90D681DBF	1	2003860	5	3
Verified	2019-11-29	xyuzyz	A6076AF90D681DBF	1	6773747	5	3

P-1 factors

Date	Factor	B1	B2
2012-09-05	156331787547630292601	100000	1900000

History

Date	User	Type	Result
2019-11-29	xyuzyz	C-PRP	M7940627/156331787547630292601 : A6076AF90D681DBF PRP: Verified PRP without proof (not generated)
2018-06-11	Daniil Tsarkov	C-PRP	M7940627/156331787547630292601 : A6076AF90D681DBF PRP: Verified PRP without proof (not generated)
2012-09-05	Squeeky_Squirrel	F-PM1	Factor: 156331787547630292601