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
1984343Factored
FactorDigitsBitsDate
47624233825.5old
16668481211030.62008-07-15 07:48:58
36223174947020660768232271.62022-05-15 15:07:34
ECM
DigitsB1Curves
2550000280 / 280
3025000058 / 640
Estimated T-Level: 25.5
TF below 2^80 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver Kruse8A9CF1E32911262D2013
Verified (Factored)2017-11-12kkmrkkblmbrbk8A9CF1E32911262D252237713
Verified2022-05-15aperson15DC9A178C8EBCF873130349353
History
DateUserTypeResult
2022-08-14USAFSSNF-PM1
B1=132000, B2=134381520
2022-05-15curtiscCERT
PRP Certification
Proof certified good
2022-05-15aperson1C-PRP
M1984343/47624233/1666848121/3622317494702066076823 : 5DC9A178C8EBCF87
PRP proof power = 7
PRP: Verified
Proof certified good
2022-05-15_p95holder_F-ECM
Factor: 3622317494702066076823 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-12kkmrkkblmbrbkC-PRP
M1984343/47624233/1666848121 : 8A9CF1E32911262D
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1984343/47624233/1666848121 : 8A9CF1E32911262D
PRP: Verified (Factored)
PRP without proof (not generated)
2008-07-15J FeitsmaF
Factor: 1666848121