12 771 007 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
64371382981104863	17	55.8	old
31560168185014236053823157541256896999	38	124.6	2022-05-08 12:39:54

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-05-14	Oliver Kruse	C6633DF4578ED86E	2	10122858	5	3

P-1 factors

Date	Factor	B1	B2
2022-05-08	31560168185014236053823157541256896999	400000	428459850

History

Date	User	Type	Result
2022-05-14	curtisc	CERT	PRP Certification Proof certified good
2022-05-14	Oliver Kruse	C-PRP	M12771007/64371382981104863/31560168185014236053823157541256896999 : C6633DF4578ED86E PRP proof power = 8 PRP: Verified Proof certified good
2022-05-08	nordi	F-PM1	Factor: 31560168185014236053823157541256896999 / (P-1, B1=400000, B2=428459850)