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

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MnStatusDetails
5821499Factored
FactorDigitsBitsDate
14953921516421818562565612580.32016-03-26 10:30:30
ECM
DigitsB1Curves
25500004 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-01-29Tim Esau7B71D0D491DDB3BB0
Verified (Factored)2000-10-15Aaron B7B71D0D491DDB3BB813186
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-20kkmrkkblmbrbk3547E4688858E0E61013
Verified2018-08-22Luigi Morelli3547E4688858E0E61150292413
History
DateUserTypeResult
2018-08-22Luigi MorelliC-PRP
M5821499/1495392151642181856256561 : 3547E4688858E0E6
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M5821499/1495392151642181856256561 : 3547E4688858E0E6
PRP: Verified
PRP without proof (not generated)
2016-03-26bamF-ECM
Factor: 1495392151642181856256561 / (ECM curve 1, B1=50000, B2=5000000)
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-09-13snme2pm1NF
no factor from 2^65 to 2^66
2014-10-18lycornNF
no factor from 2^64 to 2^65
2014-10-09NesowaNF
no factor from 2^63 to 2^64
2011-04-22USAFSSNF-PM1
B1=65000, B2=1088750, E=6