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
31663Factored
FactorDigitsBitsDate
29353825533459291651.4old
346541193536331147224892374.92010-04-20 20:08:33
4235780618817365329978792478.52015-07-03 09:23:32
5864012655259212578880770546911932105.52017-08-15 19:58:53
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000001336 / 4588
Estimated T-Level: 36.5
TF below 2^116 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseAC2DD6C17FA3F1DC4013
Verified2017-10-02kkmrkkblmbrbkAC2DD6C17FA3F1DC4013
Verified2017-12-07ATHAC2DD6C17FA3F1DC42703413
Unverified2020-04-17Oliver KruseE237BCAAC05284__41574553
History
DateUserTypeResult
2022-11-09nordiNF-PM1
B1=3000000000, B2=912626498753970
2022-09-30nordiNF-PM1
B1=3000000000
2020-04-17Oliver KruseC-PRP
M31663/2935382553345929/34654119353633114722489/423578061881736532997879/58640126552592125788807705469119 : E237BCAAC05284__
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M31663/2935382553345929/34654119353633114722489/423578061881736532997879/58640126552592125788807705469119 : AC2DD6C17FA3F1DC
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M31663/2935382553345929/34654119353633114722489/423578061881736532997879/58640126552592125788807705469119 : AC2DD6C17FA3F1DC
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M31663/2935382553345929/34654119353633114722489/423578061881736532997879/58640126552592125788807705469119 : AC2DD6C17FA3F1DC
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M31663/2935382553345929/34654119353633114722489/423578061881736532997879/58640126552592125788807705469119 : AC2DD6C17FA3F1DC
PRP without proof (not generated)
2017-08-15nordiF-ECM
Factor: 58640126552592125788807705469119 / (ECM curve 10, B1=3000000, B2=300000000)
2016-10-08kkmrkkblmbrbkNF-PM1
B1=200000000, B2=5000000000, E=12
2015-07-03James HintzF-ECM
Factor: 423578061881736532997879 / (ECM curve 140, B1=250000, B2=25000000)
2010-04-20James HintzF-ECM
Factor: 34654119353633114722489