Marin Mersenne 2^P-1
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MnStatusDetails
4896571Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
3403781734997037734632168.22018-05-29 16:13:35
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-06-28Thomas JohanssonA2AC7936EEFC183E0
Verified (Factored)2000-03-01Thomas TraberA2AC7936EEFC183E208955
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-05-30Gabriel Lignelli205B5B6107776D251260793953
Verified2018-05-30ATH205B5B6107776D25171598953
History
DateUserTypeResult
2024-08-20cramsey87NF-PM1
B1=1400000, B2=4543448910
2018-05-30ATHC-PRP
M4896571/340378173499703773463 : 205B5B6107776D25
PRP: Verified
PRP without proof (not generated)
2018-05-30Gabriel LignelliC-PRP
M4896571/340378173499703773463 : 205B5B6107776D25
PRP: Verified
PRP without proof (not generated)
2018-05-29YxinityF
Factor: 340378173499703773463 / TF: 68-69
2018-05-08ramgeisNF
no factor from 2^67 to 2^68
2017-10-31YxinityNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-23snme2pm1NF
no factor from 2^65 to 2^66
2015-01-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-07VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-26David CampeauNF-PM1
B1=420000, B2=10920000, E=12
2014-09-16-Anonymous-NF-PM1
B1=63108
2014-04-08JossNF-PM1
B1=50000
2011-10-09GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-06-21markrNF
no factor from 2^61 to 2^62
2009-09-18Carsten KossendeyNF-PM1
B1=30000, B2=435000