8 747 689 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
9309463470639263	16	53.0	old
8521626993188793874057	22	72.9	2024-08-22 14:36:29

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2019-01-10	artorollo	3B33EA7ADD49EA2D	1	8616671	5	3
Verified (Factored)	2020-08-31	kutens	3B33EA7ADD49EA2D	1	7567697	5	3
Verified	2024-08-30	Luke Durant	3B33EA7ADD49EA2D	2	560931	5	3

P-1 factors

Date	Factor	B1	B2
2024-08-22	8521626993188793874057	1609000	2040217872

History

Date	User	Type	Result
2024-08-30	ma2gikeil	CERT	PRP Certification Proof certified good
2024-08-30	Luke Durant	C-PRP	M8747689/9309463470639263/8521626993188793874057 : 3B33EA7ADD49EA2D PRP proof power = 8 PRP: Verified Proof certified good
2024-08-22	Stef42	F-PM1	Factor: 8521626993188793874057 / (P-1, B1=1609000, B2=2040217872)
2020-08-31	kutens	C-PRP	M8747689/9309463470639263 : 3B33EA7ADD49EA2D PRP: Verified (Factored) PRP without proof (not generated)
2019-01-10	artorollo	C-PRP	M8747689/9309463470639263 : 3B33EA7ADD49EA2D PRP: Verified (Factored) PRP without proof (not generated)