15 436 943 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
517971185423	12	38.9	old
55797911059511	14	45.7	2008-09-08 11:31:40

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-08-02	Perig	F139148052BA08DA	2	3552254	5	3

History

Date	User	Type	Result
2023-08-02	slandrum	CERT	PRP Certification Proof certified good
2023-08-02	Perig	C-PRP	M15436943/517971185423/55797911059511 : F139148052BA08DA PRP proof power = 8 PRP: Verified Proof certified good
2023-07-17	nordi	NF-PM1	B1=480000, B2=308477400
2023-06-19	nordi	NF-PM1	B1=480000
2008-09-08	Will Edgington	F	Factor: 55797911059511