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
2273833Factored
FactorDigitsBitsDate
76400788811032.8old
18912507347476173532392270.72022-12-04 07:22:15
ECM
DigitsB1Curves
255000082 / 280
Estimated T-Level: 21.5 ⓘ
TF below 2^66 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-11Oliver Kruse0D80A4AFEEA759CA1013
Verified (Factored)2017-11-21storm55100D80A4AFEEA759CA1108576413
Verified2022-12-09rucio65EC70B417C278EB272455553
History
DateUserTypeResult
2022-12-09Jonathan WebbCERT
PRP Certification
Proof certified good
2022-12-09rucioC-PRP
M2273833/7640078881/1891250734747617353239 : 65EC70B417C278EB
PRP proof power = 7
PRP: Verified
Proof certified good
2022-12-04_p95holder_F-ECM
Factor: 1891250734747617353239 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-21storm5510C-PRP
M2273833/7640078881 : 0D80A4AFEEA759CA
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-11Oliver KruseC-PRP
M2273833/7640078881 : 0D80A4AFEEA759CA
PRP: Verified (Factored)
PRP without proof (not generated)
2016-04-30alpertronNF-PM1
B1=500000, B2=15000000, E=12