Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
6439469Factored
FactorDigitsBitsDate
79395240677422620470712272.72016-10-30 10:28:19
ECM
DigitsB1Curves
25500004 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-01-29gary olsonF086BF383AC0FD910
Verified (Factored)2001-10-06Martin TraupeF086BF383AC0FD912746193
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-12-16Chun sung soo7C185A3B961F799716834553
Verified2018-07-15kkmrkkblmbrbk7C185A3B961F799719267453
History
DateUserTypeResult
2018-07-15kkmrkkblmbrbkC-PRP
M6439469/7939524067742262047071 : 7C185A3B961F7997
PRP: Verified
PRP without proof (not generated)
2017-12-16Chun sung sooC-PRP
M6439469/7939524067742262047071 : 7C185A3B961F7997
PRP: Verified
PRP without proof (not generated)
2016-10-30bamF-ECM
Factor: 7939524067742262047071 / (ECM curve 1, B1=50000, B2=5000000)
2016-04-03Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-10-24snme2pm1NF
no factor from 2^65 to 2^66
2014-08-05lycornNF
no factor from 2^64 to 2^65
2014-08-02NesowaNF
no factor from 2^63 to 2^64
2011-08-31markrNF-PM1
B1=165000, B2=3630000, E=6