Marin Mersenne 2^P-1
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MnStatusDetails
2296237Factored
FactorDigitsBitsDate
606874892722896265066840732685.62018-01-15 15:34:21
ECM
DigitsB1Curves
255000086 / 280
Estimated T-Level: 21.5
TF below 2^67 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Martin FahlgrenE330A82D75AF13140
Verified (Factored)1999-03-15Michael CroonE330A82D75AF1314636120
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2018-01-16treborEA1AE6210A484D6A114119453
Verified2018-01-18kkmrkkblmbrbkEA1AE6210A484D6A1186149853
History
DateUserTypeResult
2023-01-28USAFSSNF-PM1
B1=288000, B2=295342740
2018-01-18kkmrkkblmbrbkC-PRP
M2296237/60687489272289626506684073 : EA1AE6210A484D6A
PRP: Verified
PRP without proof (not generated)
2018-01-16treborC-PRP
M2296237/60687489272289626506684073 : EA1AE6210A484D6A
PRP: Verified
PRP without proof (not generated)
2018-01-15bamF-ECM
Factor: 60687489272289626506684073 / (ECM curve 1, B1=50000, B2=5000000)
2017-05-27Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-01-25JossNF-PM1
B1=431337, B2=4313370, E=6
2015-11-04ramgeisNF
no factor from 2^65 to 2^66
2015-03-12VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-12VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-03JossNF-PM1
B1=140904
2014-06-11JossNF-PM1
B1=112952
2013-12-06Jerry HallettNF
no factor from 2^62 to 2^63
2012-05-12Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-17Oscar ÖstlinNF-PM1
B1=85000, B2=1742500, E=6
2010-12-03Oscar ÖstlinNF-PM1
B1=75011
2010-11-15JossNF-PM1
B1=20000
2010-11-07JossNF-PM1
B1=15000
2009-01-16Sturle SundeNF
no factor from 2^60 to 2^61