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

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MnStatusDetails
16334657Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
22517367952731481896779112580.92022-03-17 15:14:35
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2003-03-07Jeremy Buhler8C3BB23E8BF991462337460
Verified (Factored)2006-07-25TheJudger8C3BB23E8BF991462062090
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-03-05PerigB1DEE6079719BF411394640953
P-1 factors
DateFactorB1B2
2022-03-1722517367952731481896779111000000208359270
History
DateUserTypeResult
2024-03-06Chun sung sooCERT
PRP Certification
Proof certified good
2024-03-05PerigC-PRP
M16334657/2251736795273148189677911 : B1DEE6079719BF41
PRP proof power = 8
PRP: Verified
Proof certified good
2022-03-17masserF-PM1
Factor: 2251736795273148189677911 / (P-1, B1=1000000, B2=208359270)
2021-09-20-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-08SRBaseNF
no factor from 2^70 to 2^71
2017-03-01EratosthenesNF
no factor from 2^69 to 2^70
2017-03-01EratosthenesNF
no factor from 2^68 to 2^69
2017-02-28EratosthenesNF
no factor from 2^67 to 2^68
2016-03-16Mark RoseNF
no factor from 2^65 to 2^66
2014-08-18NesowaNF
no factor from 2^66 to 2^67