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

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MnStatusDetails
3395347Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
14713326297465996011960.42009-03-25 05:54:03
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)Robert Friberg971AEA2182D786A20
Verified (Factored)1999-09-30Kim Neve971AEA2182D786A22508399
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-05Oliver Kruse627B300797FAF7791291540153
Verified2017-12-15kkmrkkblmbrbk627B300797FAF7791148172953
History
DateUserTypeResult
2022-09-05JossNF-PM1
B1=1131782, B2=213444000
2022-01-09JossNF-PM1
B1=1131782, B2=111642300
2021-07-09JossNF
no factor from 2^67 to 2^68
2021-03-15JossNF-PM1
B1=339534, B2=3734881, E=6
2017-12-15kkmrkkblmbrbkC-PRP
M3395347/1471332629746599601 : 627B300797FAF779
PRP: Verified
PRP without proof (not generated)
2017-11-05Oliver KruseC-PRP
M3395347/1471332629746599601 : 627B300797FAF779
PRP: Verified
PRP without proof (not generated)
2009-03-25S485122F
Factor: 1471332629746599601