5 600 557 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
1339294798753	13	40.3	old
940019922711343	15	49.7	2014-05-09 18:30:42

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	9886D8F929CB62BE	2	0	1	3
Verified	2018-07-22	Luigi Morelli	9886D8F929CB62BE	2	1866217	1	3

History

Date	User	Type	Result
2025-06-21	Sid & Andy	NF-PM1	B1=3200000, B2=8840360100
2023-05-12	This -Anonymous-	NF-PM1	B1=50000, B2=1000000, E=6
2018-07-22	Luigi Morelli	C-PRP	M5600557/1339294798753/940019922711343 : 9886D8F929CB62BE PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M5600557/1339294798753/940019922711343 : 9886D8F929CB62BE PRP: Verified PRP without proof (not generated)
2014-05-09	TJAOI	F	Factor: 940019922711343