Multiplicative bases and an ErdH{o}s problem
classification
🧮 math.NT
keywords
multiplicativeproblembasesbasisdensedensitydividesdots
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In this paper we investigate how small the density of a multiplicative basis of order $h$ can be in $\{1,2,\dots,n\}$ and in $\mathbb{Z}^+$. Furthermore, a related problem of Erd\H os is also studied: How dense can a set of integers be, if none of them divides the product of $h$ others?
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