Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2158679Factored
FactorDigitsBitsDate
59752234731032.5old
ECM
DigitsB1Curves
2550000119 / 280
Estimated T-Level: 22.1
TF below 2^68 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-09Oliver Kruse1554F0F61375EA301013
Verified2017-11-18kkmrkkblmbrbk1554F0F61375EA30155911713
History
DateUserTypeResult
2017-11-18kkmrkkblmbrbkC-PRP
M2158679/5975223473 : 1554F0F61375EA30
PRP: Verified
PRP without proof (not generated)
2017-10-09Oliver KruseC-PRP
M2158679/5975223473 : 1554F0F61375EA30
PRP: Verified
PRP without proof (not generated)
2016-03-31alpertronNF-PM1
B1=500000, B2=15000000, E=12