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
8712713Factored
FactorDigitsBitsDate
5328173463887561127772168.92013-12-28 13:45:03
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-12-15Steve Spicer054B56051DB630B54931763
Verified (Factored)2002-12-09Robert Emmerick054B56051DB630B5309670
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2019-01-02Oliver Kruse47FD988FD979EBAE1727044953
Verified2020-08-25marssystems47FD988FD979EBAE1725200153
History
DateUserTypeResult
2020-08-25marssystemsC-PRP
M8712713/532817346388756112777 : 47FD988FD979EBAE
PRP: Verified
PRP without proof (not generated)
2019-01-02Oliver KruseC-PRP
M8712713/532817346388756112777 : 47FD988FD979EBAE
PRP: Verified
PRP without proof (not generated)
2013-12-28Sid & AndyF-ECM
Factor: 532817346388756112777
2012-05-25James HeinrichNF-PM1
B1=160000, B2=3320000, E=6