On the $p$-adic valuation of a hyperfactorial
Abstract
In this document will be proved a formula to compute the -adic valuation of a hyperfactorial. We call a hyperfactorial the result of multiplying a given number of consecutive integers from 1 to the given number,each raised to its own power. For example, the hyperfactorial of is equal to: . Lots of studies have been done about the hyperfactorial function, in particular two mathematicians: Glaisher and Kinkelin, who have found the asymptotic behaviour of this function as that approaches infinity (finding a costant, the Glaisher-Kinkelin costant, which has a lot of expressions using the Euler Gamma function and the Riemann Zeta function). In particular in this document I'll write about the p-adic valuation of this function, or rather the maximum exponent of ( a prime integer) such that raised to that power divides the hyperfactorial of . The formula which I will present uses the famous De-Polignac formula for the -adic valuation of the simple factorial. Then I'll discuss about the asymptotic analysis of our result.
Cite
@article{arxiv.2109.05616,
title = {On the $p$-adic valuation of a hyperfactorial},
author = {Luca Onnis},
journal= {arXiv preprint arXiv:2109.05616},
year = {2021}
}
Comments
6 pages, 3 figures