Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
14696897Factored
FactorDigitsBitsDate
4880734733077783568167932478.72022-03-10 14:10:15
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)2002-06-29IES R.Dieste-I.Larrosa9FE66AE9B62F79ED12218152
Verified (Factored)2005-09-22Ing. Pavel PaJaSoft Janousek9FE66AE9B62F79ED6362009
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-04-19Perig77821557636FA9ED11107407053
P-1 factors
DateFactorB1B2
2022-03-104880734733077783568167932100000534604980
History
DateUserTypeResult
2023-04-20Chad Steenerson CERT
PRP Certification
Proof certified good
2023-04-19PerigC-PRP
M14696897/488073473307778356816793 : 77821557636FA9ED
PRP proof power = 8
PRP: Verified
Proof certified good
2022-03-10firejugglerF-PM1
Factor: 488073473307778356816793 / (P-1, B1=2100000, B2=534604980)
2021-12-08-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-15-Anonymous-NF
no factor from 2^71 to 2^72
2021-08-14Seth_TrNF
no factor from 2^70 to 2^71
2021-08-14Seth_TrNF
no factor from 2^69 to 2^70
2018-02-05ramgeisNF
no factor from 2^68 to 2^69
2018-02-05ramgeisNF
no factor from 2^67 to 2^68
2015-10-09NesowaNF
no factor from 2^66 to 2^67
2014-08-30NesowaNF
no factor from 2^65 to 2^66