Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
14395247Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
16020182481371340.5old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-02-08Ryan PropperF7D9FF7F52F1946E1378482353
History
DateUserTypeResult
2025-02-11James HeinrichNF
no factor from 2^67 to 2^69
2024-03-17vshNF
no factor from 2^68 to 2^69
2024-03-17vshNF
no factor from 2^67 to 2^68
2023-02-08DeadSpamCERT
PRP Certification
Proof certified good
2023-02-08Ryan PropperC-PRP
M14395247/1602018248137 : F7D9FF7F52F1946E
PRP proof power = 8
PRP: Verified
Proof certified good
2023-01-23nordiNF-PM1
B1=300000, B2=214790940
2022-11-21nordiNF-PM1
B1=300000