18 292 427 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
1646318431	10	30.6	old
5597482663	10	32.4	2008-09-08 14:28:46
12063233663983	14	43.5	2013-12-20 18:33:33

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2025-09-15	Michel Yamagishi	1EA603C60952FFF2	3	15110578	5	3

History

Date	User	Type	Result
2025-09-15	Chuck	CERT	PRP Certification Proof certified good
2025-09-15	Michel Yamagishi	C-PRP	M18292427/1646318431/5597482663/12063233663983 : 1EA603C60952FFF2 PRP proof power = 8 PRP: Verified Proof certified good
2025-09-08	nordi	NF-PM1	B1=500000, B2=261614430
2013-12-20	TJAOI	F	Factor: 12063233663983
2008-09-08	Will Edgington	F	Factor: 5597482663