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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MnDetails
2446357
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
14678143823.8old
ECM
DigitsB1Curves
2550000193 / 280
Estimated T-Level: 23.4
TF below 2^73 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-13Oliver KruseB0F91717EE42FECC1165317853
Verified
PRP without proof (not generated)
2017-11-28storm5510B0F91717EE42FECC119448053
History
DateUserTypeResult
2018-09-28alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-11-28storm5510C-PRPM2446357/14678143 : B0F91717EE42FECC
2017-10-13Oliver KruseC-PRPM2446357/14678143 : B0F91717EE42FECC