Marin Mersenne 2^P-1
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MnStatusDetails
2201443Factored
FactorDigitsBitsDate
28826998946650751865612271.32015-12-13 19:38:18
ECM
DigitsB1Curves
255000090 / 280
Estimated T-Level: 21.6
TF below 2^67 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Michel LacoursièreD2BAF2BBBB45A9070
Verified (Factored)1999-02-07Michael R. DonaldsonD2BAF2BBBB45A907152285
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-30alpertronA528F89916580FAA1013
Verified2017-10-25Oliver KruseA528F89916580FAA1147758913
History
DateUserTypeResult
2022-03-09LordJuliusNF
no factor from 2^1 to 2^60
2017-10-25Oliver KruseC-PRP
M2201443/2882699894665075186561 : A528F89916580FAA
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M2201443/2882699894665075186561 : A528F89916580FAA
PRP: Verified
PRP without proof (not generated)
2016-04-06alpertronNF-PM1
B1=500000, B2=15000000, E=12
2015-12-13Alexander DubrovinF-ECM
Factor: 2882699894665075186561 / (ECM curve 2, B1=50000, B2=5000000)
2015-12-13Alexander DubrovinNF-PM1
B1=6100000, B2=151000000, E=12
2015-10-26Alexander DubrovinNF-PM1
B1=2900000, B2=150000000, E=12
2015-10-26Alexander DubrovinNF-PM1
B1=2900000, B2=100000000, E=12
2015-10-22Alexander DubrovinNF-PM1
B1=2900000, B2=80000000, E=12
2015-10-22Alexander DubrovinNF-PM1
B1=2900000, B2=70000000, E=12
2015-10-21ramgeisNF
no factor from 2^65 to 2^66
2015-10-15Alexander DubrovinNF-PM1
B1=2900000, B2=60000000, E=12
2015-10-14Alexander DubrovinNF-PM1
B1=2900000, B2=50000000, E=12
2015-10-14Alexander DubrovinNF-PM1
B1=2900000, B2=40000000, E=12
2015-10-14Alexander DubrovinNF-PM1
B1=2900000, B2=30000000, E=6
2015-10-14Alexander DubrovinNF-PM1
B1=2900000, B2=25000000, E=12
2015-10-09Alexander DubrovinNF-PM1
B1=2900000, B2=15000000, E=6
2015-09-30Alexander DubrovinNF-PM1
B1=700000, B2=14000000, E=6
2015-09-29Alexander DubrovinNF-PM1
B1=700000, B2=7000000, E=12
2015-09-29Alexander DubrovinNF-PM1
B1=500000, B2=5000000, E=6
2015-09-28Alexander DubrovinNF-PM1
B1=300000, B2=3000000, E=6
2015-03-03VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-03VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-14JossNF-PM1
B1=148312
2014-07-04JossNF-PM1
B1=119156
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2011-01-10markrNF-PM1
B1=90000, B2=1642500, E=6
2010-11-09JossNF-PM1
B1=30000
2010-11-05JossNF-PM1
B1=15000
2009-01-06Sturle SundeNF
no factor from 2^61 to 2^62
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61