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
7784977Factored
FactorDigitsBitsDate
3280277908731238.3old
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2018-05-18_p95holder_238F5D57C3C097881508415953
Verified2019-09-30ATH238F5D57C3C097881631599353
History
DateUserTypeResult
2024-01-31Stef42NF-PM1
B1=950000, B2=2042400360
2019-09-30ATHC-PRP
M7784977/328027790873 : 238F5D57C3C09788
PRP: Verified
PRP without proof (not generated)
2018-05-18_p95holder_C-PRP
M7784977/328027790873 : 238F5D57C3C09788
PRP: Verified
PRP without proof (not generated)