Marin Mersenne 2^P-1
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MnStatusDetails
4984711Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
4231830094529577911870392478.52017-06-06 18:45:02
ECM
DigitsB1Curves
25500008 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-08-30John MacPherson924971888F9AFAA80
Verified (Factored)2000-03-15Tom Anderson924971888F9AFAA82825130
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-28alpertron3D94663CCCDCC8571013
Verified2018-01-10kkmrkkblmbrbk3D94663CCCDCC8571185158813
History
DateUserTypeResult
2023-07-12USAFSSNF-PM1
B1=384000, B2=227276910
2018-01-10kkmrkkblmbrbkC-PRP
M4984711/423183009452957791187039 : 3D94663CCCDCC857
PRP: Verified
PRP without proof (not generated)
2017-09-28alpertronC-PRP
M4984711/423183009452957791187039 : 3D94663CCCDCC857
PRP: Verified
PRP without proof (not generated)
2017-06-06driveByUpgradesF-ECM
Factor: 423183009452957791187039 / (ECM curve 2, B1=50000, B2=5000000)
2017-05-21YxinityNF
no factor from 2^66 to 2^67
2016-06-20Squeeky_SquirrelNF-PM1
B1=190000, B2=5082500, E=6
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-31snme2pm1NF
no factor from 2^65 to 2^66
2014-12-26VictordeHollanderNF
no factor from 2^64 to 2^65
2014-12-26VictordeHollanderNF
no factor from 2^63 to 2^64
2011-11-13GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-07-31Squeeky_SquirrelNF-PM1
B1=60000, B2=990000, E=6
2009-12-02markrNF
no factor from 2^61 to 2^62
2009-09-12Carsten KossendeyNF-PM1
B1=30000, B2=450000