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

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MnStatusDetails
2051383Factored
FactorDigitsBitsDate
5927785043363273537720332479.02020-07-12 12:58:07
ECM
DigitsB1Curves
2550000110 / 280
Estimated T-Level: 22.0
TF below 2^68 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Joe Decker9C683847529ACED60
Verified (Factored)1999-01-29John L. Evans9C683847529ACED641603
Verified (Factored)2016-07-15Mark Rose9C683847529ACED61987756
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2020-07-12M Miller26A73699F3007B8F153041553
Verified2020-07-16nordi26A73699F3007B8F1147461353
History
DateUserTypeResult
2020-07-16nordiC-PRP
M2051383/592778504336327353772033 : 26A73699F3007B8F
PRP: Verified
PRP without proof (not generated)
2020-07-12M MillerC-PRP
M2051383/592778504336327353772033 : 26A73699F3007B8F
PRP: Verified
PRP without proof (not generated)
2020-07-12daveward2005F-ECM
Factor: 592778504336327353772033 / (ECM curve 2, B1=50000, B2=5000000)
2019-08-16mikrNF-PM1
B1=4000000, B2=200000000, E=12
2019-07-02BigBrotherNF-PM1
B1=1000000, B2=20000000, E=12
2019-03-23chuenkitNF
no factor from 2^67 to 2^68
2016-08-18Gordon SpenceNF
no factor from 2^66 to 2^67
2016-07-15Mark RoseC-LL
9C683847529ACED6
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-11-03ramgeisNF
no factor from 2^65 to 2^66
2015-10-06Bruno VictalNF-PM1
B1=500000, B2=15000000, E=12
2015-04-13VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-13VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-22JossNF-PM1
B1=166288
2013-09-01ramgeisNF
no factor from 2^62 to 2^63
2012-03-09Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-26James HeinrichNF-PM1
B1=135000, B2=2868750, E=6
2011-01-06JossNF-PM1
B1=50000
2010-12-26JossNF-PM1
B1=30000
2009-05-16Rob_DeeNF-PM1
B1=20000, B2=280000
2009-01-03Sturle SundeNF
no factor from 2^60 to 2^61