11 658 421 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
814637646832871	15	49.5	old

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-10-10	Nesowa	23DE59CCF4F26F33	1	5586120	5	3
Verified	2021-10-11	LaurV	23DE59CCF4F26F33	1	4792766	5	3

History

Date	User	Type	Result
2025-06-12	yuriy_5-1	NF	no factor from 2^70 to 2^71
2025-05-05	yuriy_5-1	NF	no factor from 2^69 to 2^70
2025-03-28	yuriy_5-1	NF	no factor from 2^68 to 2^69
2025-03-11	yuriy_5-1	NF-PM1	B1=6995052, B2=453435840
2025-02-10	yuriy_5-1	NF-PM1	B1=4663368, B2=598008840
2024-06-17	yuriy_5-1	NF-PM1	B1=262144, B2=137022600
2021-10-11	curtisc	CERT	PRP Certification Proof certified good
2021-10-11	LaurV	C-PRP	M11658421/814637646832871 : 23DE59CCF4F26F33 PRP proof power = 8 PRP: Verified Proof certified good
2021-10-10	Nesowa	C-PRP	M11658421/814637646832871 : 23DE59CCF4F26F33 PRP: Verified PRP without proof (not generated)