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

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MnStatusDetails
21106453Composite, with 6 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
126638719926.9old
2304824667611237.72008-11-24 08:21:21
33234643022871341.62008-10-01 01:32:09
401979995708091445.22008-10-01 01:32:09
4756863889971591548.82011-06-20 14:27:54
3857822818637337157212168.42023-01-28 18:43:19
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-02-23Dobri5D7EF1712CA42AFE62057027353
History
DateUserTypeResult
2025-01-07ThaF-PM1
Factors: 126638719,230482466761,3323464302287,40197999570809,475686388997159,385782281863733715721 / (P-1, B1=1200000, B2=1632973650)
2023-02-24jeriffeeCERT
PRP Certification
Proof certified good
2023-02-23DobriC-PRP
M21106453/126638719/3323464302287/40197999570809/230482466761/475686388997159/385782281863733715721 : 5D7EF1712CA42AFE
PRP proof power = 8
PRP: Verified
Proof certified good
2023-01-28LordJuliusNF
no factor from 2^69 to 2^70
2023-01-28LordJuliusNF
Redundant composite factor (126638719*3323464302287) from 2^68 to 2^69
2023-01-28LordJuliusF
Factor: 385782281863733715721 / TF: 68-69
2023-01-28LordJuliusNF
no factor from 2^67 to 2^68
2011-06-20AxonF
Factor: 60240314948335910399321
2008-11-24Will EdgingtonF
Factor: 230482466761
2008-10-01markrF
Factor: 40197999570809
2008-10-01markrF
Factor: 3323464302287