Marin Mersenne 2^P-1
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MnStatusDetails
3242909Factored
FactorDigitsBitsDate
8923505860112517255772169.62021-03-02 09:21:41
ECM
DigitsB1Curves
255000032 / 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)Mike ElliottFB366D9EA92D918E0
Verified (Factored)1999-07-04Chris MauriceFB366D9EA92D918E126948
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-03-03mrhB6F0893F5F48644E1323797253
History
DateUserTypeResult
2022-09-11JossNF-PM1
B1=1000000, B2=241175550
2022-03-12JossNF-PM1
B1=1000000, B2=134343300
2021-03-03sugarbeetCERT
PRP Certification
Proof certified good
2021-03-03mrhC-PRP
M3242909/892350586011251725577 : B6F0893F5F48644E
PRP proof power = 7
PRP: Verified
Proof certified good
2021-03-02ZenzomaF-ECM
Factor: 892350586011251725577 / (ECM curve 3, B1=50000, B2=5000000, Sigma=870691495499843)
2021-02-02ViliamFNF
no factor from 2^68 to 2^69
2020-06-13mikrNF-PM1
B1=4000000, B2=150000000, E=12
2018-11-12TJAOINF
no factor from 2^67 to 2^68
2018-08-11JossNF-PM1
B1=410000, B2=4100000
2018-08-08JossNF-PM1
B1=410000, B2=2460000
2018-08-08JossNF-PM1
B1=410000, B2=2050000
2018-08-08JossNF-PM1
B1=410000, B2=1640000
2018-08-07JossNF-PM1
B1=410000, B2=1230000
2018-08-06JossNF-PM1
B1=410000, B2=820000
2017-03-27Gordon SpenceNF
no factor from 2^66 to 2^67
2017-02-04JossNF-PM1
B1=198720
2017-01-29JossNF-PM1
B1=165600
2017-01-19Squeeky_SquirrelNF-PM1
B1=205000, B2=5842500, E=12
2017-01-11JossNF-PM1
B1=138000
2015-06-24ThaNF
no factor from 2^65 to 2^66
2013-10-22David CampeauNF
no factor from 2^64 to 2^65
2013-09-06Squeeky_SquirrelNF-PM1
B1=115000, B2=2587500, E=6
2012-12-30lycornNF
no factor from 2^62 to 2^64
2011-09-09USAFSSNF-PM1
B1=55000, B2=866250, E=6
2011-07-25Carsten KossendeyNF
no factor from 2^61 to 2^62
2009-07-04Carsten KossendeyNF-PM1
B1=15000, B2=191250
2009-04-05S485122NF
no factor from 2^60 to 2^61