Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2385113Factored
FactorDigitsBitsDate
14310679823.8old
25870414368071341.22008-07-14 20:23:30
ECM
DigitsB1Curves
255000066 / 280
Estimated T-Level: 21.2
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-12Chang Chia-TcheD0B228388B155A772013
Verified2017-11-02Oliver KruseD0B228388B155A77262509413
History
DateUserTypeResult
2018-09-28alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-11-02Oliver KruseC-PRP
M2385113/14310679/2587041436807 : D0B228388B155A77
PRP: Verified
PRP without proof (not generated)
2017-10-12Chang Chia-TcheC-PRP
M2385113/14310679/2587041436807 : D0B228388B155A77
PRP: Verified
PRP without proof (not generated)
2008-07-14George WoltmanF-ECM
Factor: 2587041436807