Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
1794587Factored
FactorDigitsBitsDate
274679486231134.7old
1950113152113633176455192477.42018-12-21 05:40:37
ECM
DigitsB1Curves
2550000280 / 280
30250000108 / 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)2017-10-03Oliver KruseFA539EBA610AC03D1013
Verified (Factored)2017-11-05bayanneFA539EBA610AC03D140206713
Verified2018-12-21ATH822D56A9388B34A524986453
Verified2018-12-22kkmrkkblmbrbk822D56A9388B34A52161105553
History
DateUserTypeResult
2018-12-22kkmrkkblmbrbkC-PRP
M1794587/27467948623/195011315211363317645519 : 822D56A9388B34A5
PRP: Verified
PRP without proof (not generated)
2018-12-21ATHC-PRP
M1794587/27467948623/195011315211363317645519 : 822D56A9388B34A5
PRP: Verified
PRP without proof (not generated)
2018-12-21Chang Chia-TcheF-ECM
Factor: 195011315211363317645519 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-05bayanneC-PRP
M1794587/27467948623 : FA539EBA610AC03D
PRP: Verified
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1794587/27467948623 : FA539EBA610AC03D
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12