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

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Exponent Range:










MnStatusDetails
794249Factored
FactorDigitsBitsDate
71174659257689400508492272.62011-12-23 16:29:49
489060185792324529167659412172995.32012-01-14 14:42:26
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski18D60
Verified (Factored)Phil Nesser926EAB48FAA798D60
Verified (Factored)Klaus Kastens926EAB48FAA798D6358643
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-05Oliver Kruse92CD7D11A5987A202013
Verified2017-10-13Oliver Kruse92CD7D11A5987A20250738613
Verified2017-12-17ATH92CD7D11A5987A20251743613
Unverified (Reliable)2020-04-21Oliver Kruse8A4F0BAF1AA02E__213481453
History
DateUserTypeResult
2020-04-21Oliver KruseC-PRP
M794249/7117465925768940050849/48906018579232452916765941217 : 8A4F0BAF1AA02E__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-17ATHC-PRP
M794249/7117465925768940050849/48906018579232452916765941217 : 92CD7D11A5987A20
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M794249/7117465925768940050849/48906018579232452916765941217 : 92CD7D11A5987A20
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-05Oliver KruseC-PRP
M794249/7117465925768940050849/48906018579232452916765941217 : 92CD7D11A5987A20
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-28Oliver KruseC-PRP
M794249/7117465925768940050849/48906018579232452916765941217 : 92CD7D11A5987A20
PRP without proof (not generated)
2012-01-14JossF-ECM
Factor: 48906018579232452916765941217
2011-12-23bamF-ECM
Factor: 7117465925768940050849
2011-08-31JossNF-PM1
B1=447864
2011-07-19JossNF-PM1
B1=268718
2010-06-19Architects CubedNF
no factor from 2^60 to 2^61
2008-10-11Sturle SundeNF
no factor from 2^59 to 2^60
2008-10-11Sturle SundeNF
no factor from 2^58 to 2^59