5 505 811 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

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

Trial Factored to 2⁷⁰

TF target 2⁶⁶

Factored

Factor	Digits	Bits	Date
40391330859240047	17	55.2	old

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-12-04	kkmrkkblmbrbk	E63225BB2974C3FB	1	3830987	5	3
Verified	PRP without proof (not generated)	2018-07-01	storm5510	E63225BB2974C3FB	1	2756582	5	3

History

Date	User	Type	Result
2025-05-09	Sid & Andy	NF	no factor TF: 68-70
2021-09-23	Dylan Delgado	NF-PM1	B1=2350000, B2=213850000
2018-07-01	storm5510	C-PRP	M5505811/40391330859240047 : E63225BB2974C3FB
2017-12-04	kkmrkkblmbrbk	C-PRP	M5505811/40391330859240047 : E63225BB2974C3FB
1998-04-05	-anonymous-	F	Factor: 40391330859240047