9 905 447 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
3565960921	10	31.7	old
15629272007305871	17	53.8	2014-10-13 11:33:11

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-11-15	ATH	44DA9BFFA798A0AE	2	8592415	5	3
Verified	2021-01-09	kutens	44DA9BFFA798A0AE	2	4774029	5	3

History

Date	User	Type	Result
2025-07-11	Elysia	NF-PM1	B1=7507358, B2=9898896150
2021-01-09	Franklin Webber	CERT	PRP Certification Proof certified good
2021-01-09	kutens	C-PRP	M9905447/3565960921/15629272007305871 : 44DA9BFFA798A0AE PRP proof power = 8 PRP: Verified Proof certified good
2019-11-15	ATH	C-PRP	M9905447/3565960921/15629272007305871 : 44DA9BFFA798A0AE PRP: Verified PRP without proof (not generated)
2014-10-13	TJAOI	F	Factor: 15629272007305871 / TF: 53-54