Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
2416409Factored
FactorDigitsBitsDate
131702679540749468133078792683.42020-06-21 04:30:52
ECM
DigitsB1Curves
255000052 / 280
Estimated T-Level: 20.9 ⓘ
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Edmund C. HackFC4D2A1063CA552A0
Verified (Factored)1999-05-23C. Cooper / S. BooneFC4D2A1063CA552A265906
Verified (Factored)2018-05-19kkmrkkblmbrbkFC4D2A1063CA552A1640657
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-06-21M MillerEF22B415481402151205223453
Verified2020-06-25Luigi MorelliEF22B415481402151183626853
History
DateUserTypeResult
2020-06-25Luigi MorelliC-PRP
M2416409/13170267954074946813307879 : EF22B41548140215
PRP: Verified
PRP without proof (not generated)
2020-06-21M MillerC-PRP
M2416409/13170267954074946813307879 : EF22B41548140215
PRP: Verified
PRP without proof (not generated)
2020-06-21mnd9F-ECM
Factor: 13170267954074946813307879 / (ECM curve 1, B1=50000, B2=5000000, Sigma=8775525281941247)
2019-04-02YxinityNF
no factor from 2^69 to 2^70
2019-03-25Anton RepkoNF
no factor from 2^67 to 2^69
2018-05-19kkmrkkblmbrbkC-LL
FC4D2A1063CA552A
2017-07-02Gordon 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
2014-03-30mikrNF-PM1
B1=3102822, B2=43439508, E=12
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-04Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-12-19markrNF-PM1
B1=95000, B2=1923750, E=6
2010-11-16JossNF-PM1
B1=20000
2010-11-09JossNF-PM1
B1=15000
2009-01-16Sturle SundeNF
no factor from 2^60 to 2^61