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
3603169Factored
FactorDigitsBitsDate
79660338833218548735532272.82021-10-15 15:04:00
ECM
DigitsB1Curves
255000033 / 280
Estimated T-Level: 20.6
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-07-21Michael Bryan65CB75FBAC7E7AA20
Verified (Factored)1999-07-30Stephen Scott65CB75FBAC7E7AA22780836
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-10-22GANB45BAEE4FA437AA91234563853
History
DateUserTypeResult
2022-05-25JossNF-PM1
B1=100000, B2=130364850
2022-03-22JossNF-PM1
B1=100000
2022-03-04JossNF-PM1
B1=90000
2021-10-22BrightSpotCERT
PRP Certification
Proof certified good
2021-10-22GANC-PRP
M3603169/7966033883321854873553 : B45BAEE4FA437AA9
PRP proof power = 7
PRP: Verified
Proof certified good
2021-10-15mnd9F-ECM
Factor: 7966033883321854873553 / (ECM curve 4, B1=50000, B2=5000000, Sigma=6503166958864093)
2020-11-14axnNF
no factor from 2^69 to 2^70
2020-10-18axnNF
no factor from 2^68 to 2^69
2020-07-28axnNF-PM1
B1=15000000, B2=1000000000, E=12
2020-05-24axnNF-PM1
B1=15000000, B2=600000000, E=12
2019-02-04TJAOINF
no factor from 2^67 to 2^68
2016-12-20Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-10-19ramgeisNF
no factor from 2^65 to 2^66
2015-01-20VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-20VictordeHollanderNF
no factor from 2^63 to 2^64
2012-06-05GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-11-23markrNF-PM1
B1=240000, B2=6120000, E=12
2011-06-12markrNF
no factor to 2^62
2009-07-04Carsten KossendeyNF-PM1
B1=20000, B2=245000
2009-03-13S485122NF
no factor from 2^60 to 2^61