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
1933549Factored
FactorDigitsBitsDate
866229953929.7old
161802879829488966837292373.82021-05-24 03:42:47
ECM
DigitsB1Curves
2550000268 / 280
Estimated T-Level: 24.8
TF below 2^77 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver KruseB1D03139FA1212E31013
Verified (Factored)2017-11-10ATHB1D03139FA1212E31142625013
Verified2021-05-26kutens12867EBCAA06F1052143858253
History
DateUserTypeResult
2021-05-26curtiscCERT
PRP Certification
Proof certified good
2021-05-26kutensC-PRP
M1933549/866229953/16180287982948896683729 : 12867EBCAA06F105
PRP proof power = 7
PRP: Verified
Proof certified good
2021-05-24_p95holder_F-ECM
Factor: 16180287982948896683729 / (ECM curve 7, B1=50000, B2=5000000)
2017-11-10ATHC-PRP
M1933549/866229953 : B1D03139FA1212E3
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1933549/866229953 : B1D03139FA1212E3
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12