7 858 579 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶⁷

Factored

Factor	Digits	Bits	Date
19436104774487	14	44.1	old
198014202495959	15	47.5	2014-03-06 11:42:18

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-05-23	storm5510	98556992AC633CC1	2	3444013	5	3
Verified	PRP without proof (not generated)	2019-10-27	Oliver Kruse	98556992AC633CC1	2	1560935	5	3

History

Date	User	Type	Result
2024-01-31	Stef42	NF-PM1	B1=950000, B2=1968826860
2019-10-27	Oliver Kruse	C-PRP	M7858579/19436104774487/198014202495959 : 98556992AC633CC1
2018-05-23	storm5510	C-PRP	M7858579/19436104774487/198014202495959 : 98556992AC633CC1
2014-03-06	TJAOI	F	Factor: 198014202495959