Marin Mersenne 2^P-1
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MnStatusDetails
2475163Factored
FactorDigitsBitsDate
1117935942034985449354972476.62018-07-17 00:20:51
ECM
DigitsB1Curves
255000032 / 280
Estimated T-Level: 20.6 ⓘ
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Eric ThomasB9D69246221B664C0
Verified (Factored)Robert FribergB9D69246221B664C0
Verified (Factored)1999-05-09Toby Norfolk-ThompsonB9D69246221B664C272822
Verified (Factored)1999-05-09Toby Norfolk-ThompsonB9D69246221B664C2177848
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-07-19Martin Russell6208D9982CCCC3C9120828353
Verified2018-07-21arnaud6208D9982CCCC3C912020053
History
DateUserTypeResult
2018-09-28alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2018-07-21arnaudC-PRP
M2475163/111793594203498544935497 : 6208D9982CCCC3C9
PRP: Verified
PRP without proof (not generated)
2018-07-19Martin RussellC-PRP
M2475163/111793594203498544935497 : 6208D9982CCCC3C9
PRP: Verified
PRP without proof (not generated)
2018-07-17Chang Chia-TcheF-ECM
Factor: 111793594203498544935497 / (ECM curve 2, B1=50000, B2=5000000)
2017-07-22Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-27ramgeisNF
no factor from 2^65 to 2^66
2015-03-03VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-03VictordeHollanderNF
no factor from 2^63 to 2^64
2013-10-30David CampeauNF-PM1
B1=595000, B2=16065000, E=12
2013-02-21dbaughNF
no factor from 2^62 to 2^63
2012-06-08Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-12-11JossNF-PM1
B1=247516
2010-11-20JossNF-PM1
B1=20000
2009-01-15Sturle SundeNF
no factor from 2^60 to 2^61