Marin Mersenne 2^P-1
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MnStatusDetails
2779417Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
624091785793579419672065.82010-11-27 04:16:06
ECM
DigitsB1Curves
2550000110 / 280
Estimated T-Level: 22.0
TF below 2^68 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Jeremy Buhler7294D3FE7AED90300
Verified (Factored)1999-07-27Jody Sorensen7294D3FE7AED90301077804
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-21Oliver Kruse592F5448689BA0C5194080353
Verified2017-12-06kkmrkkblmbrbk592F5448689BA0C51228512553
History
DateUserTypeResult
2022-09-20USAFSSNF-PM1
B1=220000, B2=203416290
2017-12-06kkmrkkblmbrbkC-PRP
M2779417/62409178579357941967 : 592F5448689BA0C5
PRP: Verified
PRP without proof (not generated)
2017-10-21Oliver KruseC-PRP
M2779417/62409178579357941967 : 592F5448689BA0C5
PRP: Verified
PRP without proof (not generated)
2010-11-27markrF-PM1
Factor: 62409178579357941967
2010-11-10JossNF-PM1
B1=15000
2009-01-28Sturle SundeNF
no factor from 2^60 to 2^61