Marin Mersenne 2^P-1
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MnStatusDetails
2272183Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
382653590579249559612065.12010-01-01 12:17:34
ECM
DigitsB1Curves
2550000112 / 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)Wayne ScottB709CD6719E91AF20
Verified (Factored)1999-05-02Luisma MorenoB709CD6719E91AF21667866
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-11Oliver KruseE3B5DD2B202196141013
Verified2017-11-21kkmrkkblmbrbkE3B5DD2B20219614121345913
History
DateUserTypeResult
2017-11-21kkmrkkblmbrbkC-PRP
M2272183/38265359057924955961 : E3B5DD2B20219614
PRP: Verified
PRP without proof (not generated)
2017-10-11Oliver KruseC-PRP
M2272183/38265359057924955961 : E3B5DD2B20219614
PRP: Verified
PRP without proof (not generated)
2016-04-29alpertronNF-PM1
B1=500000, B2=15000000, E=12
2010-01-01sannerud.comF-ECM
Factor: 38265359057924955961
2009-01-17Sturle SundeNF
no factor from 2^60 to 2^61