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
1831723Factored
FactorDigitsBitsDate
18317231824.1old
123824474811133.52008-07-15 07:47:11
167579093589269631675900732683.82020-11-24 08:58:22
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)2017-10-04Oliver Kruse4E66AD8BBA7F57F32013
Verified (Factored)2017-11-06ATH4E66AD8BBA7F57F3247119813
Verified2020-11-24mrh4D467D5AF83483FB3164978653
History
DateUserTypeResult
2020-11-24JNAprimesCERT
PRP Certification
Proof certified good
2020-11-24mrhC-PRP
M1831723/18317231/12382447481/16757909358926963167590073 : 4D467D5AF83483FB
PRP proof power = 7
PRP: Verified
Proof certified good
2020-11-24Chang Chia-TcheF-ECM
Factor: 16757909358926963167590073 / (ECM curve 1, B1=50000, B2=5000000, Sigma=4044979737148020)
2017-11-06ATHC-PRP
M1831723/18317231/12382447481 : 4E66AD8BBA7F57F3
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-04Oliver KruseC-PRP
M1831723/18317231/12382447481 : 4E66AD8BBA7F57F3
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-07-15J FeitsmaF
Factor: 12382447481