11 968 771 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
331747234822457	15	48.2	old
85353112418285829747745679593	29	96.1	2021-11-23 09:54:37

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-12-12	kutens	64CEE901A63C49DB	2	3622237	5	3

P-1 factors

Date	Factor	B1	B2
2021-11-23	85353112418285829747745679593	400000	12000000

History

Date	User	Type	Result
2023-06-12	nordi	NF-PM1	B1=400000, B2=428459850
2021-12-12	Keith Outwater	CERT	PRP Certification Proof certified good
2021-12-12	kutens	C-PRP	M11968771/331747234822457/85353112418285829747745679593 : 64CEE901A63C49DB PRP proof power = 8 PRP: Verified Proof certified good
2021-11-23	nordi	F-PM1	Factor: 85353112418285829747745679593 / (P-1, B1=400000, B2=12000000)
2021-11-20	nordi	NF-PM1	B1=400000