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

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MnStatusDetails
1643797Factored
FactorDigitsBitsDate
3324437371313946127192168.22012-02-10 10:10:07
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David FredEE86964340FB7CD90
Verified (Factored)1999-02-14Kent LeeEE86964340FB7CD91612931
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-02Oliver KruseCC236D2F96373D8D1013
Verified2017-11-02ATHCC236D2F96373D8D1126211113
History
DateUserTypeResult
2022-03-08LordJuliusNF
no factor from 2^58 to 2^60
2017-11-02ATHC-PRP
M1643797/332443737131394612719 : CC236D2F96373D8D
PRP: Verified
PRP without proof (not generated)
2017-10-02Oliver KruseC-PRP
M1643797/332443737131394612719 : CC236D2F96373D8D
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2012-02-10AxonF-ECM
Factor: 332443737131394612719
2012-02-10AxonNF-PM1
B1=1000000, B2=40000000, E=12
2012-02-10AxonNF-PM1
B1=1000000, B2=32000000, E=12
2012-02-10AxonNF-PM1
B1=1000000, B2=24000000, E=12
2012-02-10AxonNF-PM1
B1=1000000, B2=16000000, E=12
2012-02-10AxonNF-PM1
B1=1000000, B2=8000000, E=12
2012-02-10AxonNF-PM1
B1=1000000
2012-02-10AxonNF-PM1
B1=900000
2012-02-10AxonNF-PM1
B1=800000
2012-02-10AxonNF-PM1
B1=700000
2012-02-10AxonNF-PM1
B1=600000
2012-02-10AxonNF-PM1
B1=500000
2012-02-10AxonNF-PM1
B1=400000
2012-02-10AxonNF-PM1
B1=300000
2012-02-10AxonNF-PM1
B1=200000
2012-02-10AxonNF-PM1
B1=100000
2010-07-30GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-05-01Architects CubedNF
no factor from 2^60 to 2^61