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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
11675791Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
257100917831134.6old
17347423236171340.72008-09-08 07:38:04
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-10-07Chad Steenerson 9A303FB65E9874E62984872353
History
DateUserTypeResult
2025-06-16yuriy_5-1NF
no factor from 2^70 to 2^71
2025-05-06yuriy_5-1NF
no factor from 2^69 to 2^70
2025-03-28yuriy_5-1NF
no factor from 2^68 to 2^69
2025-03-11yuriy_5-1NF-PM1
B1=7005474, B2=453435840
2025-02-10yuriy_5-1NF-PM1
B1=4670316, B2=598008840
2024-06-17yuriy_5-1NF-PM1
B1=262144, B2=137022600
2021-10-07jericksonCERT
PRP Certification
Proof certified good
2021-10-07Chad Steenerson C-PRP
M11675791/25710091783/1734742323617 : 9A303FB65E9874E6
PRP proof power = 8
PRP: Verified
Proof certified good
2008-09-08Will EdgingtonF
Factor: 1734742323617