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
11633233Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
255931127927.9old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-09-26PluckyPizzicato2A96D663F96B10721136476353
History
DateUserTypeResult
2025-06-10yuriy_5-1NF
no factor from 2^70 to 2^71
2025-05-05yuriy_5-1NF
no factor from 2^69 to 2^70
2025-03-31yuriy_5-1NF
no factor from 2^68 to 2^69
2025-03-11yuriy_5-1NF-PM1
B1=6979938, B2=448598700
2025-02-10yuriy_5-1NF-PM1
B1=4653292, B2=598008840
2024-06-17yuriy_5-1NF-PM1
B1=262144, B2=137022600
2021-09-26Simon JosefssonCERT
PRP Certification
Proof certified good
2021-09-26PluckyPizzicatoC-PRP
M11633233/255931127 : 2A96D663F96B1072
PRP proof power = 8
PRP: Verified
Proof certified good