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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MnStatusDetails
4259Factored918648240952126271

484399053828087857927777245183883458323463
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2020-10-01tottenhoff791F2DA8E1540E402304053
Verified (Factored)2020-04-17Oliver Kruse791F2DA8E1540E401328053
Verified (Factored)2017-10-12kkmrkkblmbrbk0548EAC5F9087BCE141013
Verified (Factored)2017-09-21Oliver Kruse0548EAC5F9087BCE1013
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2017-10-09Chang Chia-TchePRP test0.0 % 2017-10-092017-10-12
History
DateUserTypeResult
2021-07-05ViliamFNF-PM1B1=1000000000, B2=201000000000
2020-10-01tottenhoffC-PRPM4259/918648240952126271/484399053828087857927777245183883458323463 : 791F2DA8E1540E40
2020-09-30Ryan PropperF-ECMFactor: 484399053828087857927777245183883458323463 / (ECM curve 1, B1=110000000, B2=900514153782, Sigma=7921730607498746562)
2020-04-17Oliver KruseC-PRPM4259/918648240952126271 : 791F2DA8E1540E40
2017-10-12kkmrkkblmbrbkC-PRPM4259/918648240952126271 : 0548EAC5F9087BCE
2017-09-21Oliver KruseC-PRPM4259/918648240952126271 : 0548EAC5F9087BCE
2017-09-21Oliver KruseC-PRPM4259/918648240952126271 : 0548EAC5F9087BCE
2009-10-25Carsten KossendeyFFactor: 918648240952126271