5 849 461 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
703327491719	12	39.4	old
6979847647500999319	19	62.6	2016-09-07 11:21:06
40587861835646497889879	23	75.1	2025-09-06 05:49:54

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	94E27F92CF4E3C63	2	0	1	3
Verified (Factored)	2018-08-26	ATH	94E27F92CF4E3C63	2	5521610	1	3
Verified	2025-09-13	Massimo Cappelli (ik5pwa)	60B114DA6D45A0C7	3	2072628	5	3

P-1 factors

Date	Factor	B1	B2
2025-09-06	40587861835646497889879	3300000	6742848840

History

Date	User	Type	Result
2025-09-13	takahashi	CERT	PRP Certification Proof certified good
2025-09-13	Massimo Cappelli (ik5pwa)	C-PRP	M5849461/703327491719/6979847647500999319/40587861835646497889879 : 60B114DA6D45A0C7 PRP proof power = 7 PRP: Verified Proof certified good
2025-09-06	Sid & Andy	F-PM1	Factor: 40587861835646497889879 / (P-1, B1=3300000, B2=6742848840)
2023-05-12	This -Anonymous-	NF-PM1	B1=50000, B2=1000000, E=6
2018-08-26	ATH	C-PRP	M5849461/703327491719/6979847647500999319 : 94E27F92CF4E3C63 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M5849461/6979847647500999319/703327491719 : 94E27F92CF4E3C63 PRP: Verified (Factored) PRP without proof (not generated)
2016-09-07	TJAOI	F	Factor: 6979847647500999319 / TF: 62-63