Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
11691091Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
740917708996716071756.0old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-10-11mrhB07C5F64CF6DC39E11112223653
History
DateUserTypeResult
2025-06-19yuriy_5-1NF
no factor from 2^70 to 2^71
2025-05-07yuriy_5-1NF
no factor from 2^69 to 2^70
2025-03-20yuriy_5-1NF
no factor from 2^68 to 2^69
2025-03-11yuriy_5-1NF-PM1
B1=7014654, B2=453435840
2025-02-14yuriy_5-1NF-PM1
B1=4676436, B2=604581120
2024-06-17yuriy_5-1NF-PM1
B1=262144, B2=137022600
2021-10-11YveroCERT
PRP Certification
Proof certified good
2021-10-11mrhC-PRP
M11691091/74091770899671607 : B07C5F64CF6DC39E
PRP proof power = 8
PRP: Verified
Proof certified good