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

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MnStatusDetails
2035447Factored
FactorDigitsBitsDate
3665571346667241380808398491433098.22020-01-08 03:15:32
ECM
DigitsB1Curves
2550000280 / 280
30250000129 / 640
Estimated T-Level: 26.0
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)phil kenny3A65B3CAAD670EB10
Verified (Factored)1999-01-17Michael Croon3A65B3CAAD670EB11303428
Verified (Factored)2016-07-15Mark Rose3A65B3CAAD670EB11352327
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2020-01-08mrh6FFE066F856EBAA41164529453
Verified2020-01-09Ivan M6FFE066F856EBAA41148148353
History
DateUserTypeResult
2020-01-09Ivan MC-PRP
M2035447/366557134666724138080839849143 : 6FFE066F856EBAA4
PRP: Verified
PRP without proof (not generated)
2020-01-08mrhC-PRP
M2035447/366557134666724138080839849143 : 6FFE066F856EBAA4
PRP: Verified
PRP without proof (not generated)
2020-01-08CoreyF-ECM
Factor: 366557134666724138080839849143 / (ECM curve 1, B1=50000, B2=5000000)
2019-05-23mikrNF-PM1
B1=4000000, B2=200000000, E=12
2019-03-20chuenkitNF
no factor from 2^67 to 2^68
2016-07-29Gordon SpenceNF
no factor from 2^66 to 2^67
2016-07-15Mark RoseC-LL
3A65B3CAAD670EB1
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-11-01ramgeisNF
no factor from 2^65 to 2^66
2015-10-05Bruno VictalNF-PM1
B1=500000, B2=15000000, E=12
2015-04-13VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-13VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-17JossNF-PM1
B1=163066
2014-07-04JossNF-PM1
B1=131533
2013-08-29ramgeisNF
no factor from 2^62 to 2^63
2012-02-10Sebastian HornbostelNF
no factor from 2^61 to 2^62
2009-01-30markrNF-PM1
B1=100000, B2=3000000, E=6
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61