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
1831933Factored
FactorDigitsBitsDate
47337148731032.1old
690113016330522647374012375.92021-02-20 13:58:29
ECM
DigitsB1Curves
2550000280 / 280
30250000106 / 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)2017-10-04Oliver Kruse1FEF448382BBF96D1013
Verified (Factored)2017-11-06kkmrkkblmbrbk1FEF448382BBF96D1104043613
Verified2021-02-24Klaus Nordmann75EBB808371B79F42153916153
Verified2021-03-15Anton Repko75EBB808371B79F42141629253
History
DateUserTypeResult
2021-03-15sponzoCERT
PRP Certification
Proof certified good
2021-03-15Anton RepkoC-PRP
M1831933/4733714873/69011301633052264737401 : 75EBB808371B79F4
PRP proof power = 7
PRP: Verified
Proof certified good
2021-02-24Klaus NordmannC-PRP
M1831933/4733714873/69011301633052264737401 : 75EBB808371B79F4
PRP proof power = 7
PRP: Verified
PRP proof never uploaded
2021-02-20_p95holder_F-ECM
Factor: 69011301633052264737401 / (ECM curve 5, B1=50000, B2=5000000)
2017-11-06kkmrkkblmbrbkC-PRP
M1831933/4733714873 : 1FEF448382BBF96D
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-04Oliver KruseC-PRP
M1831933/4733714873 : 1FEF448382BBF96D
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12