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

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MnStatusDetails
5293049Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
47663053490889354864072272.02024-12-04 23:45:38
ECM
DigitsB1Curves
255000072 / 280
Estimated T-Level: 21.3 ⓘ
TF below 2^66 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-10-04Phil BrettF6287346CC369FD80
Verified (Factored)2000-09-08Jason AndersonF6287346CC369FD84440180
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-12-18gLaussB5AE268ED64867F61286083453
History
DateUserTypeResult
2024-12-18XyzzyCERT
PRP Certification
Proof certified good
2024-12-18gLaussC-PRP
M5293049/4766305349088935486407 : B5AE268ED64867F6
PRP proof power = 7
PRP: Verified
Proof certified good
2024-12-04MannImMondF-ECM
Factor: 4766305349088935486407 / (ECM curve 35, B1=50000, B2=47392422, Edwards Sigma=5597363754594360)
2022-07-13Sid & AndyNF-PM1
B1=7000000, B2=5981471760
2021-10-13SRBaseNF
no factor from 2^71 to 2^72
2021-09-01SRBaseNF
no factor from 2^70 to 2^71
2021-08-18SRBaseNF
no factor from 2^69 to 2^70
2020-09-14TJAOINF
no factor from 2^68 to 2^69
2018-06-11ramgeisNF
no factor from 2^67 to 2^68
2016-11-20Denial140NF-PM1
B1=522480, B2=10972073, E=12
2016-11-12Denial140NF-PM1
B1=226726, B2=4081066, E=6
2016-06-18Gordon SpenceNF
no factor from 2^66 to 2^67
2015-08-14snme2pm1NF
no factor from 2^65 to 2^66
2014-12-23VictordeHollanderNF
no factor from 2^64 to 2^65
2014-12-23VictordeHollanderNF
no factor from 2^63 to 2^64
2010-07-26Squeeky_SquirrelNF-PM1
B1=60000, B2=975000, E=6
2009-08-22Carsten KossendeyNF-PM1
B1=25000, B2=343750
2009-06-02GrunwalderGIMPNF
no factor from 2^62 to 2^63