Marin Mersenne 2^P-1
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MnStatusDetails
2023951Factored
FactorDigitsBitsDate
297659489657200266466148892684.62020-12-06 19:55:11
ECM
DigitsB1Curves
2550000280 / 280
30250000110 / 640
Estimated T-Level: 25.9 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Andrew GaulD39EDC795BDFB3540
Verified (Factored)1999-01-29Gavin BrockD39EDC795BDFB3541602461
Verified (Factored)2016-07-15Mark RoseD39EDC795BDFB35474115
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-12-06mrhE8636D7E472474221175382553
History
DateUserTypeResult
2020-12-06Simon JosefssonCERT
PRP Certification
Proof certified good
2020-12-06mrhC-PRP
M2023951/29765948965720026646614889 : E8636D7E47247422
PRP proof power = 7
PRP: Verified
Proof certified good
2020-12-06ZenzomaF-ECM
Factor: 29765948965720026646614889 / (ECM curve 2, B1=50000, B2=5000000, Sigma=2600150549109518)
2019-03-18chuenkitNF
no factor from 2^67 to 2^68
2019-03-16mikrNF-PM1
B1=4000000, B2=200000000, E=12
2016-07-15Mark RoseC-LL
D39EDC795BDFB354
2016-07-02Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-10-31ramgeisNF
no factor from 2^65 to 2^66
2015-04-10VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-10VictordeHollanderNF
no factor from 2^63 to 2^64
2013-10-21David CampeauNF-PM1
B1=580000, B2=15080000, E=12
2013-02-11dbaughNF
no factor from 2^62 to 2^63
2012-02-05Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-12-11JossNF-PM1
B1=202395
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61