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
3398047Factored
FactorDigitsBitsDate
61164847825.9old
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-05Oliver Kruse69764EA03BEFE4001248565353
Verified2017-12-16kkmrkkblmbrbk69764EA03BEFE400120934953
History
DateUserTypeResult
2022-09-05JossNF-PM1
B1=1132682, B2=213444000
2022-01-09JossNF-PM1
B1=1132682, B2=111642300
2021-04-01JossNF
no factor from 2^67 to 2^68
2021-03-15JossNF-PM1
B1=339804, B2=3737851, E=6
2017-12-16kkmrkkblmbrbkC-PRP
M3398047/61164847 : 69764EA03BEFE400
PRP: Verified
PRP without proof (not generated)
2017-11-05Oliver KruseC-PRP
M3398047/61164847 : 69764EA03BEFE400
PRP: Verified
PRP without proof (not generated)