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

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MnStatusDetails
1647977Factored
FactorDigitsBitsDate
59893500292277747690479032582.32018-02-08 08:25:17
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 BrlejFB758C2511C2C8A50
Verified (Factored)1999-01-29Ruediger K. EckhardFB758C2511C2C8A5376599
Verified (Factored)2015-07-19MadPooFB758C2511C2C8A51568572
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2018-02-10Oliver Kruse932B6C879EF5D84B1153517453
Verified2018-02-11kkmrkkblmbrbk932B6C879EF5D84B179677553
History
DateUserTypeResult
2018-02-11kkmrkkblmbrbkC-PRP
M1647977/5989350029227774769047903 : 932B6C879EF5D84B
PRP: Verified
PRP without proof (not generated)
2018-02-10Oliver KruseC-PRP
M1647977/5989350029227774769047903 : 932B6C879EF5D84B
PRP: Verified
PRP without proof (not generated)
2018-02-08bamF-ECM
Factor: 5989350029227774769047903 / (ECM curve 3, B1=50000, B2=5000000)
2017-10-27TJAOINF
no factor from 2^66 to 2^67
2017-09-01JossNF-PM1
B1=2000000, B2=20000000, E=12
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-10-11ramgeisNF
no factor from 2^65 to 2^66
2015-07-19MadPooC-LL
FB758C2511C2C8A5
2015-05-07monstNF
no factor from 2^64 to 2^65
2015-05-06omylistNF
no factor from 2^63 to 2^64
2012-03-01AxonNF-PM1
B1=1000000, B2=20000000, E=12
2012-03-01AxonNF-PM1
B1=1000000, B2=8000000, E=12
2012-02-29AxonNF-PM1
B1=1000000
2012-02-29AxonNF-PM1
B1=900000
2012-02-29AxonNF-PM1
B1=800000
2012-02-29AxonNF-PM1
B1=700000
2012-02-29AxonNF-PM1
B1=600000
2012-02-29AxonNF-PM1
B1=500000
2012-02-29AxonNF-PM1
B1=400000
2012-02-29AxonNF-PM1
B1=300000
2012-02-29AxonNF-PM1
B1=200000
2012-02-29AxonNF-PM1
B1=100000
2010-08-03GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-30Architects CubedNF
no factor from 2^60 to 2^61