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

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MnStatusDetails
1643003Factored
FactorDigitsBitsDate
67778945210718537818800657612892.52012-02-25 07:11:06
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)Tom Seitz6D87C6869264107C0
Verified (Factored)1998-11-28Paul Victor Novarese6D87C6869264107C372831
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-02Oliver KruseC9D90AE2402EEE891013
Verified2017-11-02kkmrkkblmbrbkC9D90AE2402EEE891134940613
History
DateUserTypeResult
2017-11-02kkmrkkblmbrbkC-PRP
M1643003/6777894521071853781880065761 : C9D90AE2402EEE89
PRP: Verified
PRP without proof (not generated)
2017-10-02Oliver KruseC-PRP
M1643003/6777894521071853781880065761 : C9D90AE2402EEE89
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2012-02-25AxonF-ECM
Factor: 6777894521071853781880065761
2012-02-25AxonNF-PM1
B1=1000000, B2=40000000, E=12
2012-02-25AxonNF-PM1
B1=1000000, B2=32000000, E=12
2012-02-25AxonNF-PM1
B1=1000000, B2=24000000, E=6
2012-02-25AxonNF-PM1
B1=1000000, B2=8000000, E=12
2012-02-25AxonNF-PM1
B1=1000000
2012-02-25AxonNF-PM1
B1=900000
2012-02-25AxonNF-PM1
B1=800000
2012-02-25AxonNF-PM1
B1=700000
2012-02-25AxonNF-PM1
B1=600000
2012-02-25AxonNF-PM1
B1=500000
2012-02-25AxonNF-PM1
B1=400000
2012-02-25AxonNF-PM1
B1=300000
2012-02-25AxonNF-PM1
B1=200000
2012-02-25AxonNF-PM1
B1=100000
2010-07-30GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-30Architects CubedNF
no factor from 2^60 to 2^61