Square-full numbers multiple of a certain set of primes and hybrid numbers

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Rafael Jakimczuk

Abstract

Let h ≥ 1 be an arbitrary but fixed positive integer. Let us consider the s distinct primes q1, . . . , qs. Let Bq1···qs(x) be the number of h-full numbers not exceeding x multiple of q1 · · · qs and let Aq1···qs (x) be the number of h-full numbers not exceeding x relatively prime to q1 · · · qs. In this note we obtain asymptotic formulas for Aq1···qs (x) and Bq1···qs (x). Then we apply the results obtained in the study of hybrid h-full numbers. That is, the h-full numbers of the form qhQ, where q > 1 is square-free, Q > 1 is a (h + 1)-full number, and q, Q are relatively prime.

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How to Cite
Jakimczuk, R. (2024). Square-full numbers multiple of a certain set of primes and hybrid numbers. Gulf Journal of Mathematics, 16(1), 136-149. https://doi.org/10.56947/gjom.v16i1.1786
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