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
2315029Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
238842792045671444.4old
ECM
DigitsB1Curves
2550000239 / 280
Estimated T-Level: 24.3
TF below 2^76 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-11Oliver KruseB233C28ECAF8C9E81013
Verified2017-11-23kkmrkkblmbrbkB233C28ECAF8C9E81149459013
History
DateUserTypeResult
2021-05-10ViliamFNF-PM1
B1=5000000, B2=505000000
2018-02-28alpertronNF-PM1
B1=500000, B2=15000000, E=12
2017-11-23kkmrkkblmbrbkC-PRP
M2315029/23884279204567 : B233C28ECAF8C9E8
PRP: Verified
PRP without proof (not generated)
2017-10-11Oliver KruseC-PRP
M2315029/23884279204567 : B233C28ECAF8C9E8
PRP: Verified
PRP without proof (not generated)