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
2575319
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
355394023928.4old
29873700411031.52008-07-14 20:25:07
ECM
DigitsB1Curves
2550000202 / 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)
2017-10-15Oliver KruseA68E8468BE5A43AA2117465253
Verified
PRP without proof (not generated)
2017-12-01storm5510A68E8468BE5A43AA21102153
History
DateUserTypeResult
2022-09-02USAFSSNF-PM1B1=300000, B2=235092660
2017-12-01storm5510C-PRPM2575319/355394023/2987370041 : A68E8468BE5A43AA
2017-10-15Oliver KruseC-PRPM2575319/355394023/2987370041 : A68E8468BE5A43AA
2008-07-14George WoltmanF-ECMFactor: 2987370041