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
1704067Factored
FactorDigitsBitsDate
1287218130471236.9old
3321234489870891548.22008-08-26 20:19:51
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-30alpertronC43BEC1FD4D661EE2013
Verified2017-10-18Oliver KruseC43BEC1FD4D661EE232838613
History
DateUserTypeResult
2021-07-16Dylan DelgadoNF-PM1
B1=3000000, B2=273000000
2017-10-18Oliver KruseC-PRP
M1704067/128721813047/332123448987089 : C43BEC1FD4D661EE
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M1704067/128721813047/332123448987089 : C43BEC1FD4D661EE
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-08-26-Anonymous-F
Factor: 332123448987089