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
1939039Factored
FactorDigitsBitsDate
23570086283688951531961.02009-08-10 01:16:00
ECM
DigitsB1Curves
2550000273 / 280
Estimated T-Level: 24.9
TF below 2^78 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Robert Kulagowski5D5C765B02DD6B1B0
Verified (Factored)1999-01-10Hans Kieserman5D5C765B02DD6B1B435128
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-05Oliver Kruse98730D34456F7A211013
Verified2017-11-11kkmrkkblmbrbk98730D34456F7A211118951813
History
DateUserTypeResult
2017-11-11kkmrkkblmbrbkC-PRP
M1939039/2357008628368895153 : 98730D34456F7A21
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1939039/2357008628368895153 : 98730D34456F7A21
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2009-08-10SubPrimeF-ECM
Factor: 2357008628368895153