7 490 363 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 4 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
194749439	9	27.5	old
128913281910377	15	46.9	2008-09-08 03:33:11
26237305667851780487	20	64.5	2017-10-26 15:05:18
2449321447433590924769	22	71.1	2024-02-12 17:14:36

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2018-03-05	kkmrkkblmbrbk	440487150C7C09FA	3	6762472	5	3
Verified (Factored)	2019-06-24	nokno	440487150C7C09FA	3	817957	5	3
Verified	2024-02-15	Naegi Makoto	440487150C7C09FA	4	3363447	5	3

P-1 factors

Date	Factor	B1	B2
2024-02-12	2449321447433590924769	2500000	2500000

History

Date	User	Type	Result
2024-02-15	lozcs	CERT	PRP Certification Proof certified good
2024-02-15	Naegi Makoto	C-PRP	M7490363/194749439/128913281910377/26237305667851780487/2449321447433590924769 : 440487150C7C09FA PRP proof power = 8 PRP: Verified Proof certified good
2024-02-12	Stef42	F-PM1	Factor: 2449321447433590924769 / (P-1, B1=2500000)
2019-06-24	nokno	C-PRP	M7490363/194749439/128913281910377/26237305667851780487 : 440487150C7C09FA PRP: Verified (Factored) PRP without proof (not generated)
2018-03-05	kkmrkkblmbrbk	C-PRP	M7490363/128913281910377/194749439/26237305667851780487 : 440487150C7C09FA PRP: Verified (Factored) PRP without proof (not generated)
2017-10-26	TJAOI	F	Factor: 26237305667851780487 / TF: 64-65
2008-09-08	Will Edgington	F	Factor: 128913281910377