Marin Mersenne 2^P-1
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MnStatusDetails
4679921Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
83199067226645451911962.92010-05-29 01:25:44
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-07-21Roland RobertsD54C63AF2CB7A5E70
Verified (Factored)2001-05-13Gerhard H WrodniggD54C63AF2CB7A5E74539215
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-20kkmrkkblmbrbkF474DBE622DBCA441013
Verified2018-03-06ATHF474DBE622DBCA44169695813
History
DateUserTypeResult
2024-08-18cramsey87NF-PM1
B1=1400000, B2=1205424990
2018-03-06ATHC-PRP
M4679921/8319906722664545191 : F474DBE622DBCA44
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M4679921/8319906722664545191 : F474DBE622DBCA44
PRP: Verified
PRP without proof (not generated)
2010-05-29markrF
Factor: 8319906722664545191