Marin Mersenne 2^P-1
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MnStatusDetails
4881871Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
46457003433110464383596092581.92023-03-24 05:44:39
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)Dax PratherD627628987397D7D0
Verified (Factored)2001-04-15Marc Getty / Phil FizurD627628987397D7D3483272
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-03-30Funky Waddle4BAD2BA485534CDF1398574653
P-1 factors
DateFactorB1B2
2023-03-244645700343311046438359609410000010697308050
History
DateUserTypeResult
2023-03-30Jason LynchCERT
PRP Certification
Proof certified good
2023-03-30Funky WaddleC-PRP
M4881871/4645700343311046438359609 : 4BAD2BA485534CDF
PRP proof power = 7
PRP: Verified
Proof certified good
2023-03-24Sid & AndyF-PM1
Factor: 4645700343311046438359609 / (P-1, B1=4100000, B2=10697308050)
2020-12-04-Anonymous-NF
no factor from 2^70 to 2^71
2018-06-26YxinityNF
no factor from 2^69 to 2^70
2018-06-26YxinityNF
no factor from 2^68 to 2^69
2018-05-08ramgeisNF
no factor from 2^67 to 2^68
2017-11-05YxinityNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^1 to 2^61
2016-02-22Squeeky_SquirrelNF-PM1
B1=165000, B2=4166250, E=6
2015-07-22snme2pm1NF
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
2011-10-09GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-07-17USAFSSNF-PM1
B1=60000, B2=945000, E=6
2010-04-12markrNF
no factor from 2^61 to 2^62