lucky prime

A lucky prime is a lucky number that is also a prime number. So, in a sense, such numbers are doubly “lucky” because they’ve survived two different sieves. The first few are 3, 7, 13, 31, 37, 43, 67, 73, 79, 127, 151, 163 (http://planetmath.org/OneHundredSixtyThree), 193, etc., listed in A031157 of Sloane’s OEIS. It’s known that there are infinitely many primes and it’s known that there are infinitely many lucky numbers, but it’s not known if there are infinitely many lucky primes.

单词	LuckyPrime
释义	lucky prime A lucky prime is a lucky number that is also a prime number. So, in a sense, such numbers are doubly “lucky” because they’ve survived two different sieves. The first few are 3, 7, 13, 31, 37, 43, 67, 73, 79, 127, 151, 163 (http://planetmath.org/OneHundredSixtyThree), 193, etc., listed in A031157 of Sloane’s OEIS. It’s known that there are infinitely many primes and it’s known that there are infinitely many lucky numbers, but it’s not known if there are infinitely many lucky primes.
随便看	cohomology of compact connected Lie groups CohomologyOfSemisimpleLieAlgebras cohomology of semi-simple Lie algebras Coinvariant coinvariant Colimits of n-types CollatzProblem Collatz problem CollatzSequence Collatz sequence CollatzSequencesStartingWithNumbersOfTheForm3n1ForOddN334 Collatz sequences starting with numbers of the form 3⁢n+1 for odd n<334 Collection collection CollectionwiseNormal collectionwise normal Collinear collinear Coloring coloring ColoringsOfPlaneGraphs colorings of plane graphs ColossallyAbundantNumber colossally abundant number ColouringProblem