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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MnStatusDetails
2459993Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
34439903825.0old
ECM
DigitsB1Curves
2550000146 / 280
Estimated T-Level: 22.6
TF below 2^70 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-15Chang Chia-Tche5D031D511CD8837E1013
Verified2017-11-05Oliver Kruse5D031D511CD8837E192673913
History
DateUserTypeResult
2018-09-28alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-11-05Oliver KruseC-PRP
M2459993/34439903 : 5D031D511CD8837E
PRP: Verified
PRP without proof (not generated)
2017-10-15Chang Chia-TcheC-PRP
M2459993/34439903 : 5D031D511CD8837E
PRP: Verified
PRP without proof (not generated)