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:





MnDetails
2579617
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
15477703823.9old
ECM
DigitsB1Curves
2550000125 / 280
Estimated T-Level: 22.2
TF below 2^69 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-15Oliver Kruse874C1B6314ECB65D1160895553
Verified
PRP without proof (not generated)
2017-12-01storm5510874C1B6314ECB65D1113574453
History
DateUserTypeResult
2022-09-03USAFSSNF-PM1B1=240000, B2=188075250
2017-12-01storm5510C-PRPM2579617/15477703 : 874C1B6314ECB65D
2017-10-15Oliver KruseC-PRPM2579617/15477703 : 874C1B6314ECB65D