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

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MnStatusDetails
1667779Factored
FactorDigitsBitsDate
11354881528763420946693532579.92012-02-16 11:16:24
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)George Woltman2093ECC5921F40B40
Verified (Factored)1999-03-15nsx2093ECC5921F40B4915435
Verified (Factored)1999-03-15Rick Suntag2093ECC5921F40B41175815
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-02Oliver KruseCC9BE1808FE4B95C1013
Verified2017-11-02ATHCC9BE1808FE4B95C175189213
History
DateUserTypeResult
2017-11-02ATHC-PRP
M1667779/1135488152876342094669353 : CC9BE1808FE4B95C
PRP: Verified
PRP without proof (not generated)
2017-10-02Oliver KruseC-PRP
M1667779/1135488152876342094669353 : CC9BE1808FE4B95C
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2012-02-16AxonF-ECM
Factor: 1135488152876342094669353
2012-02-16AxonNF-PM1
B1=1000000, B2=40000000, E=12
2012-02-16AxonNF-PM1
B1=1000000, B2=32000000, E=12
2012-02-16AxonNF-PM1
B1=1000000, B2=24000000, E=12
2012-02-16AxonNF-PM1
B1=1000000, B2=16000000, E=12
2012-02-16AxonNF-PM1
B1=1000000
2012-02-16AxonNF-PM1
B1=900000
2012-02-16AxonNF-PM1
B1=800000
2012-02-16AxonNF-PM1
B1=700000
2012-02-16AxonNF-PM1
B1=600000
2012-02-16AxonNF-PM1
B1=500000
2012-02-16AxonNF-PM1
B1=400000
2012-02-16AxonNF-PM1
B1=300000
2012-02-16AxonNF-PM1
B1=200000
2012-02-16AxonNF-PM1
B1=100000
2010-08-22GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-29Architects CubedNF
no factor from 2^60 to 2^61