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

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MnStatusDetails
2323397Factored
FactorDigitsBitsDate
46334245315899147137112272.02020-04-17 01:53:00
ECM
DigitsB1Curves
255000051 / 280
Estimated T-Level: 20.9
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-05-02David Kerber2AD7C7174E07204A1760322
Verified (Factored)1999-05-09Martin Fahlgren2AD7C7174E07204A0
Verified (Factored)2018-05-05kkmrkkblmbrbk2AD7C7174E07204A1969148
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2020-04-17Christoph ZengerFAD4541D5F5F7DFF155641053
Verified2020-04-21Justine V.FAD4541D5F5F7DFF1209923153
History
DateUserTypeResult
2020-04-21Justine V.C-PRP
M2323397/4633424531589914713711 : FAD4541D5F5F7DFF
PRP: Verified
PRP without proof (not generated)
2020-04-17Christoph ZengerC-PRP
M2323397/4633424531589914713711 : FAD4541D5F5F7DFF
PRP: Verified
PRP without proof (not generated)
2020-04-17Sergey NosovF-ECM
Factor: 4633424531589914713711 / (ECM curve 3, B1=50000, B2=5000000)
2019-04-08TJAOINF
no factor from 2^67 to 2^68
2018-05-05kkmrkkblmbrbkC-LL
2AD7C7174E07204A
2017-12-30Sid & AndyNF-PM1
B1=6000000, B2=180000000, E=12
2017-06-03Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-10-25ramgeisNF
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
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-05-26Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-02-22BudNF-PM1
B1=500000, B2=10000000, E=12
2009-01-15Sturle SundeNF
no factor from 2^60 to 2^61