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
2496383
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
738929369929.5old
ECM
DigitsB1Curves
2550000185 / 280
Estimated T-Level: 23.3
TF below 2^72 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-14Oliver Kruse6B9E73253880FE7A1130816453
Verified
PRP without proof (not generated)
2017-11-30storm55106B9E73253880FE7A1105985953
History
DateUserTypeResult
2019-07-04alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-11-30storm5510C-PRPM2496383/738929369 : 6B9E73253880FE7A
2017-10-14Oliver KruseC-PRPM2496383/738929369 : 6B9E73253880FE7A