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
2133463Factored
FactorDigitsBitsDate
21334631824.3old
75652597991032.82008-07-14 20:20:41
ECM
DigitsB1Curves
2550000103 / 280
Estimated T-Level: 21.8
TF below 2^68 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-08Oliver Kruse55A1BDA65AC07C112013
Verified2017-11-18kkmrkkblmbrbk55A1BDA65AC07C112177533613
History
DateUserTypeResult
2017-11-18kkmrkkblmbrbkC-PRP
M2133463/21334631/7565259799 : 55A1BDA65AC07C11
PRP: Verified
PRP without proof (not generated)
2017-10-08Oliver KruseC-PRP
M2133463/21334631/7565259799 : 55A1BDA65AC07C11
PRP: Verified
PRP without proof (not generated)
2016-03-22alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-07-14George WoltmanF-ECM
Factor: 7565259799