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
2000393Factored
FactorDigitsBitsDate
21244173671031.0old
631958334824936486146632375.72022-06-08 08:15:28
ECM
DigitsB1Curves
2550000280 / 280
30250000115 / 640
Estimated T-Level: 25.9
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver Kruse1B001F1DDE9EC60E1013
Verified (Factored)2017-11-13kkmrkkblmbrbk1B001F1DDE9EC60E168860413
Verified2022-06-14Poao2D9D9EB31FF8BC3E2128284853
History
DateUserTypeResult
2022-11-25USAFSSNF-PM1
B1=650000, B2=730452492
2022-06-16curtiscCERT
PRP Certification
Proof certified good
2022-06-14PoaoC-PRP
M2000393/2124417367/63195833482493648614663 : 2D9D9EB31FF8BC3E
PRP proof power = 7
PRP: Verified
Proof certified good
2022-06-08debrouxlF-ECM
Factor: 63195833482493648614663 / (ECM curve 1, B1=50000, B2=5900000, Sigma=3361882061605201)
2019-01-17JossNF-PM1
B1=1000000, B2=10000000, E=12
2017-11-13kkmrkkblmbrbkC-PRP
M2000393/2124417367 : 1B001F1DDE9EC60E
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M2000393/2124417367 : 1B001F1DDE9EC60E
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12