11 279 197 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
1951391314577	13	40.8	old
105184196740289	15	46.6	2008-09-08 07:29:19
428398794764409765977	21	68.5	2025-02-10 10:42:33

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2021-06-25	tottenhoff	05908F36659151F9	2	8190569	5	3
Verified	2025-02-18	vsh	05908F36659151F9	3	8672168	5	3

History

Date	User	Type	Result
2025-06-02	vsh	NF	no factor from 2^71 to 2^72
2025-05-22	vsh	NF-PM1	B1=10000000, B2=20257605060
2025-04-06	vsh	NF	no factor from 2^70 to 2^71
2025-03-11	vsh	NF	no factor from 2^69 to 2^70
2025-02-18	JuniTheDingo	CERT	PRP Certification Proof certified good
2025-02-18	vsh	C-PRP	M11279197/1951391314577/105184196740289/428398794764409765977 : 05908F36659151F9 PRP proof power = 8 PRP: Verified Proof certified good
2025-02-10	vsh	F	Factor: 428398794764409765977 / TF: 68-69
2024-06-21	vsh	NF-PM1	B1=312500, B2=124105800
2021-06-25	curtisc	CERT	PRP Certification Proof certified good
2021-06-25	tottenhoff	C-PRP	M11279197/1951391314577/105184196740289 : 05908F36659151F9 PRP proof power = 8 PRP: Verified (Factored) Proof certified good
2008-09-08	Will Edgington	F	Factor: 105184196740289