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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
7881983Factored
FactorDigitsBitsDate
1418015560679031547.0old
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2018-05-29_p95holder_CDC1C25993F1A9761606663353
Verified2019-11-04GANCDC1C25993F1A9761716521453
History
DateUserTypeResult
2024-02-02Stef42NF-PM1
B1=950000, B2=1968826860
2019-11-04GANC-PRP
M7881983/141801556067903 : CDC1C25993F1A976
PRP: Verified
PRP without proof (not generated)
2018-05-29_p95holder_C-PRP
M7881983/141801556067903 : CDC1C25993F1A976
PRP: Verified
PRP without proof (not generated)