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

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Exponent Range:










MnStatusDetails
1749959Factored
FactorDigitsBitsDate
1949629321911237.5old
5262200132116733998827372478.82020-07-03 05:31:10
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.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-03Oliver KruseB33C1C6D4F6EA4BB1013
Verified (Factored)2017-11-03kkmrkkblmbrbkB33C1C6D4F6EA4BB142703613
Verified2020-07-03M MillerD2033848192CA92D225710353
Verified2020-07-04marssystemsD2033848192CA92D2163612053
History
DateUserTypeResult
2020-07-04marssystemsC-PRP
M1749959/194962932191/526220013211673399882737 : D2033848192CA92D
PRP: Verified
PRP without proof (not generated)
2020-07-03M MillerC-PRP
M1749959/194962932191/526220013211673399882737 : D2033848192CA92D
PRP: Verified
PRP without proof (not generated)
2020-07-03nordiF-ECM
Factor: 526220013211673399882737 / (ECM curve 1, B1=50000, B2=5000000, Sigma=4435235280640942)
2017-11-03kkmrkkblmbrbkC-PRP
M1749959/194962932191 : B33C1C6D4F6EA4BB
PRP: Verified
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1749959/194962932191 : B33C1C6D4F6EA4BB
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12