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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Exponent Range:





MnDetails
2471461
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
7706213114891239.5old
ECM
DigitsB1Curves
2550000201 / 280
Estimated T-Level: 23.6
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)
2017-10-14Oliver Kruse6988788526E9A2041197400253
Verified
PRP without proof (not generated)
2017-11-29storm55106988788526E9A2041164547553
History
DateUserTypeResult
2018-09-28alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-11-29storm5510C-PRPM2471461/770621311489 : 6988788526E9A204
2017-10-14Oliver KruseC-PRPM2471461/770621311489 : 6988788526E9A204