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Factoring Catalan numbers

Number Theory 2019-08-13 v1 Combinatorics

Abstract

The paper describes a prime factorization of the Catalan numbers. Odd prime factors are distributed in layers in accordance with Legendre's formula. The content of each layer is a network of the intervals, Chebyshev's Segments. The primes of Segment are not calculated and are selected on the basis of its bounds. Layers contain non-repeated primes. Repeated factors are formed when primes are duplicated among different layers. The paper slightly modifies Kummer's theorem for the selection of individual prime factors, also starting from the boundaries of Segments. In conclusion, the reader is offered a software service for factorization of the Catalan number with index up to 10810^8

Keywords

Cite

@article{arxiv.1908.03752,
  title  = {Factoring Catalan numbers},
  author = {Gennady Eremin},
  journal= {arXiv preprint arXiv:1908.03752},
  year   = {2019}
}

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12 pages