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
4397Factored149118978601

1432803526457417

289041852087298746712043757073410343587428123771191294135823
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2020-10-01mnd942CB08130A252F9A3264053
Verified (Factored)2020-10-01M Miller42CB08130A252F9A3278553
Verified (Factored)2020-04-17Oliver Kruse42CB08130A252F9A2433253
Verified (Factored)2017-10-12kkmrkkblmbrbkAE21FC6EF69470B8277113
Verified (Factored)2017-09-21Oliver KruseAE21FC6EF69470B82013
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2017-10-09Chang Chia-TchePRP test0.0 % 2017-10-092017-10-12
History
DateUserTypeResult
2021-07-06ViliamFNF-PM1B1=1000000000, B2=201000000000
2020-10-01mnd9C-PRPM4397/149118978601/1432803526457417/289041852087298746712043757073410343587428123771191294135823 : 42CB08130A252F9A
2020-10-01M MillerC-PRPM4397/149118978601/1432803526457417/289041852087298746712043757073410343587428123771191294135823 : 42CB08130A252F9A
2020-10-01Ryan PropperF-ECMFactor: 289041852087298746712043757073410343587428123771191294135823 / (ECM curve 1, B1=110000000, B2=900514153782, Sigma=1673610197772850481)
2020-04-17Oliver KruseC-PRPM4397/149118978601/1432803526457417 : 42CB08130A252F9A
2017-10-12kkmrkkblmbrbkC-PRPM4397/149118978601/1432803526457417 : AE21FC6EF69470B8
2017-09-21Oliver KruseC-PRPM4397/149118978601/1432803526457417 : AE21FC6EF69470B8
2017-09-21Oliver KruseC-PRPM4397/149118978601/1432803526457417 : AE21FC6EF69470B8