Marin Mersenne 2^P-1
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MnStatusDetails
2232887Factored
FactorDigitsBitsDate
1194310858696900218928030812786.62020-07-20 15:31:48
ECM
DigitsB1Curves
255000089 / 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)Kenneth Forward4887952C87478F790
Verified (Factored)1999-02-14David Phillips4887952C87478F79740411
Verified (Factored)2018-04-20kkmrkkblmbrbk4887952C87478F792095215
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-07-21argusdustyAF9FAEDAFE2514CC1119412053
Verified2020-07-22marssystemsAF9FAEDAFE2514CC151051953
History
DateUserTypeResult
2020-07-22marssystemsC-PRP
M2232887/119431085869690021892803081 : AF9FAEDAFE2514CC
PRP: Verified
PRP without proof (not generated)
2020-07-21argusdustyC-PRP
M2232887/119431085869690021892803081 : AF9FAEDAFE2514CC
PRP: Verified
PRP without proof (not generated)
2020-07-20GANF-ECM
Factor: 119431085869690021892803081 / (ECM curve 2, B1=50000, B2=5000000, Sigma=1233553044877412)
2019-04-08TJAOINF
no factor from 2^67 to 2^68
2018-04-20kkmrkkblmbrbkC-LL
4887952C87478F79
2016-12-23Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-01-07Alexander DubrovinNF-PM1
B1=2000000, B2=65000000, E=12
2015-11-26Alexander DubrovinNF-PM1
B1=1300000, B2=11000000, E=12
2015-10-25ramgeisNF
no factor from 2^65 to 2^66
2015-03-10VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-10VictordeHollanderNF
no factor from 2^63 to 2^64
2014-09-30JossNF-PM1
B1=142490
2014-05-26JossNF-PM1
B1=113745
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-04-20Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-13Oscar ÖstlinNF-PM1
B1=85000, B2=1615000, E=6
2010-10-26Oscar ÖstlinNF-PM1
B1=75011
2009-01-11Sturle SundeNF
no factor from 2^60 to 2^61