It is known that there exists a prime $p$ between $2n$ and $3n$. I'd like to know whether there is an upper bound on $p$ or whether there is an upper bound on a prime between $2n$ and $kn$, where $k$ is an odd integer.
Is there an upper bound on a prime between $2n$ and $3n$?
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prime-numbers
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4$3n-1{}{}{}{}$? – 2012-02-23