Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
1339259Factored
FactorDigitsBitsDate
2678519721.4old
139282937927.12008-07-15 09:58:25
956273245111215111756.42015-01-16 12:21:28
2718630069741875503672167.92017-11-09 16:43:09
199572878620925522025107032684.02018-06-29 09:47:24
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 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)2017-09-30Oliver Kruse163EF0C5A82615E73013
Verified (Factored)2017-10-23kkmrkkblmbrbk163EF0C5A82615E73275613
Verified (Factored)2017-11-10Oliver KruseF8FBE42F7023BE124104127153
Verified (Factored)2017-11-10ATHF8FBE42F7023BE12413948953
Verified2018-06-30ANONYMOUSF8FBE42F7023BE125111249253
Verified2018-06-30Oliver KruseF8FBE42F7023BE125125619953
P-1 factors
DateFactorB1B2
2015-01-169562732451112151150000015000000
History
DateUserTypeResult
2018-06-30Oliver KruseC-PRP
M1339259/2678519/139282937/95627324511121511/271863006974187550367/19957287862092552202510703 : F8FBE42F7023BE12
PRP: Verified
PRP without proof (not generated)
2018-06-30ANONYMOUSC-PRP
M1339259/2678519/139282937/95627324511121511/271863006974187550367/19957287862092552202510703 : F8FBE42F7023BE12
PRP: Verified
PRP without proof (not generated)
2018-06-29TJAOIF-ECM
Factor: 19957287862092552202510703 / (ECM curve 183, B1=50000, B2=5000000)
2017-11-10ATHC-PRP
M1339259/2678519/139282937/95627324511121511/271863006974187550367 : F8FBE42F7023BE12
PRP: Verified
PRP without proof (not generated)
2017-11-10Oliver KruseC-PRP
M1339259/2678519/139282937/95627324511121511/271863006974187550367 : F8FBE42F7023BE12
PRP: Verified
PRP without proof (not generated)
2017-11-09ATHF-ECM
Factor: 271863006974187550367 / (ECM curve 1, B1=50000, B2=5000000)
2017-10-23kkmrkkblmbrbkC-PRP
M1339259/2678519/139282937/95627324511121511 : 163EF0C5A82615E7
PRP: Verified
PRP without proof (not generated)
2017-09-30Oliver KruseC-PRP
M1339259/2678519/139282937/95627324511121511 : 163EF0C5A82615E7
PRP: Verified
PRP without proof (not generated)
2015-01-16alpertronF-PM1
Factor: 95627324511121511 / (P-1, B1=500000, B2=15000000, E=12)
2008-07-15J FeitsmaF
Factor: 139282937