Marin Mersenne 2^P-1
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MnStatusDetails
2418659Factored
FactorDigitsBitsDate
2144475934666231509853025932787.52021-01-03 19:50:09
ECM
DigitsB1Curves
2550000108 / 280
Estimated T-Level: 21.9 ⓘ
TF below 2^68 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Matthias Müller085F6472952C62540
Verified (Factored)1999-05-23Kent Lee085F6472952C62541922864
Verified (Factored)2018-05-19kkmrkkblmbrbk085F6472952C62541649845
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-01-04riccardo ubertiA320A82CA0D8FB861163691853
History
DateUserTypeResult
2021-01-04curtiscCERT
PRP Certification
Proof certified good
2021-01-04riccardo ubertiC-PRP
M2418659/214447593466623150985302593 : A320A82CA0D8FB86
PRP proof power = 7
PRP: Verified
Proof certified good
2021-01-03KeysarecoolF-ECM
Factor: 214447593466623150985302593 / (ECM curve 5, B1=50000, B2=5000000, Sigma=6039960971671799)
2019-04-18Anton RepkoNF
no factor from 2^69 to 2^70
2019-04-02Anton RepkoNF
no factor from 2^67 to 2^69
2018-05-19kkmrkkblmbrbkC-LL
085F6472952C6254
2017-07-05Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-22ramgeisNF
no factor from 2^65 to 2^66
2015-02-27VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-27VictordeHollanderNF
no factor from 2^63 to 2^64
2014-04-04mikrNF-PM1
B1=3102822, B2=43439508, E=12
2013-12-04Jerry HallettNF
no factor from 2^62 to 2^63
2012-06-04Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-12-18markrNF-PM1
B1=95000, B2=1923750, E=6
2010-11-16JossNF-PM1
B1=20000
2010-11-09JossNF-PM1
B1=15000
2009-01-11Sturle SundeNF
no factor from 2^60 to 2^61