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
236893Factored
FactorDigitsBitsDate
212266809600127211754.2old
4406199369968781953411477212788.52020-01-23 13:11:07
133332421610468370339301900072993.42016-04-22 12:20:35
ECM
DigitsB1Curves
2550000280 / 280
30250000478 / 640
Estimated T-Level: 28.7
TF below 2^90 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-22Oliver Kruse3F81389EDC6E77F82013
Verified (Factored)2017-09-30alpertron3F81389EDC6E77F82013
Verified (Factored)2017-12-07ATH3F81389EDC6E77F827268913
Verified2020-01-23mrhD2727D02CBFDA83331058553
Verified2020-01-24marssystemsD2727D02CBFDA83337178453
History
DateUserTypeResult
2022-04-02Oliver KruseNF-PM1
B1=30000000, B2=10120247026890
2021-07-10Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-01-24marssystemsC-PRP
M236893/21226680960012721/13333242161046837033930190007/440619936996878195341147721 : D2727D02CBFDA833
PRP: Verified
PRP without proof (small exponent)
2020-01-23mrhC-PRP
M236893/21226680960012721/13333242161046837033930190007/440619936996878195341147721 : D2727D02CBFDA833
PRP: Verified
PRP without proof (small exponent)
2020-01-23_p95holder_F-ECM
Factor: 440619936996878195341147721 / (ECM curve 3, B1=250000, B2=25000000)
2017-12-07ATHC-PRP
M236893/21226680960012721/13333242161046837033930190007 : 3F81389EDC6E77F8
PRP: Verified
PRP without proof (small exponent)
2017-09-30alpertronC-PRP
M236893/13333242161046837033930190007/21226680960012721 : 3F81389EDC6E77F8
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M236893/21226680960012721/13333242161046837033930190007 : 3F81389EDC6E77F8
PRP without proof (not generated)
2016-04-22TJAOIF-ECM
Factor: 13333242161046837033930190007 / (ECM curve 18, B1=50000, B2=5000000)