8 213 441 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
12975374790756951577	20	63.5	2011-08-10 05:16:45

Status	Date	User	Residue	Shift
Verified (Factored)	2000-01-12	Emil Steen	73CA097EB07CA820	6856557
Verified (Factored)	2003-03-27	Ars Technica Team Prime Rib	73CA097EB07CA820	6185457

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-09-20	Oliver Kruse	4342B725A716B486	1	6024392	5	3
Verified	2020-03-11	Luigi Morelli	4342B725A716B486	1	7052345	5	3

History

Date	User	Type	Result
2023-05-11	This -Anonymous-	NF-PM1	B1=100000, B2=2000000, E=6
2020-03-11	Luigi Morelli	C-PRP	M8213441/12975374790756951577 : 4342B725A716B486 PRP: Verified PRP without proof (not generated)
2018-09-20	Oliver Kruse	C-PRP	M8213441/12975374790756951577 : 4342B725A716B486 PRP: Verified PRP without proof (not generated)
2011-08-10	Carsten Kossendey	F	Factor: 12975374790756951577
2011-08-10	Carsten Kossendey	NF	no factor from 2^63 to 2^64