Marin Mersenne 2^P-1
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MnStatusDetails
1889501Factored
FactorDigitsBitsDate
14349552925157051928792270.32015-12-09 23:07:15
ECM
DigitsB1Curves
2550000280 / 280
30250000106 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Rick Dickinson5A68E0494FC9B03F0
Verified (Factored)1998-12-21Robert Mutschler5A68E0494FC9B03F978379
Verified (Factored)2015-06-29MadPoo5A68E0494FC9B03F838284
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-30alpertronB0DA8C352B5141A71013
Verified2017-10-19Oliver KruseB0DA8C352B5141A7151818413
History
DateUserTypeResult
2017-10-19Oliver KruseC-PRP
M1889501/1434955292515705192879 : B0DA8C352B5141A7
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M1889501/1434955292515705192879 : B0DA8C352B5141A7
PRP: Verified
PRP without proof (not generated)
2015-12-09Chang Chia-TcheF-ECM
Factor: 1434955292515705192879 / (ECM curve 2, B1=50000, B2=5000000)
2015-10-07Bruno VictalNF-PM1
B1=500000, B2=15000000, E=12
2015-09-13ramgeisNF
no factor from 2^65 to 2^66
2015-06-29MadPooC-LL
5A68E0494FC9B03F
2015-05-11snme2pm1NF
no factor from 2^64 to 2^65
2015-05-11snme2pm1NF
no factor from 2^63 to 2^64
2012-01-19markrNF-PM1
B1=275000, B2=6000000, E=12
2011-03-08GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-01Architects CubedNF
no factor from 2^60 to 2^61