8 124 047 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
497061691649	12	38.9	old

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-08-18	Li Xinrui	AF42500F99665950	1	2928670	5	3
Verified	2020-02-14	Luigi Morelli	AF42500F99665950	1	7177109	5	3

History

Date	User	Type	Result
2023-03-19	Flaukrotist	NF	no factor from 2^68 to 2^69
2022-11-23	Flaukrotist	NF-PM1	B1=2200000, B2=1908376140
2022-03-23	Flaukrotist	NF	no factor from 2^67 to 2^68
2020-02-14	Luigi Morelli	C-PRP	M8124047/497061691649 : AF42500F99665950 PRP: Verified PRP without proof (not generated)
2018-08-18	Li Xinrui	C-PRP	M8124047/497061691649 : AF42500F99665950 PRP: Verified PRP without proof (not generated)