Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
2315897Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
13461846081611340.3old
89133317377211343.02014-01-10 14:36:14
ECM
DigitsB1Curves
2550000159 / 280
Estimated T-Level: 22.8
TF below 2^71 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-11Oliver KruseA276B963CAFD279B2013
Verified2017-11-23kkmrkkblmbrbkA276B963CAFD279B259032613
History
DateUserTypeResult
2023-05-05LordJuliusNF
no factor from 2^67 to 2^68
2021-05-10ViliamFNF-PM1
B1=5000000, B2=505000000
2018-02-26alpertronNF-PM1
B1=500000, B2=15000000, E=12
2017-11-23kkmrkkblmbrbkC-PRP
M2315897/1346184608161/8913331737721 : A276B963CAFD279B
PRP: Verified
PRP without proof (not generated)
2017-10-11Oliver KruseC-PRP
M2315897/1346184608161/8913331737721 : A276B963CAFD279B
PRP: Verified
PRP without proof (not generated)
2014-01-10TJAOIF
Factor: 8913331737721