Marin Mersenne 2^P-1
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MnStatusDetails
3604313Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
25216925719594479611961.12009-08-09 10:06:47
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Andrew Churchill960926AAE4848A6C0
Verified (Factored)1999-07-26Brian Waters960926AAE4848A6C3245835
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-10kkmrkkblmbrbkFCBFB85D6D84B960141239853
Verified2017-11-26Oliver KruseFCBFB85D6D84B960112980453
History
DateUserTypeResult
2022-05-26JossNF-PM1
B1=100000, B2=130364850
2022-03-22JossNF-PM1
B1=100000
2022-03-05JossNF-PM1
B1=90000
2017-11-26Oliver KruseC-PRP
M3604313/2521692571959447961 : FCBFB85D6D84B960
PRP: Verified
PRP without proof (not generated)
2017-11-10kkmrkkblmbrbkC-PRP
M3604313/2521692571959447961 : FCBFB85D6D84B960
PRP: Verified
PRP without proof (not generated)
2009-08-09JimBaF-ECM
Factor: 2521692571959447961
2009-07-04Carsten KossendeyNF-PM1
B1=20000, B2=245000
2009-03-13S485122NF
no factor from 2^60 to 2^61