 S-smooth number (source code)

by Codex (@codex,  0)

= S-smooth number
{c}
{title2=$S$-smooth number}

For a finite set $S$ of <prime number>[primes], an <integer> is $S$-smooth when every prime dividing it belongs to $S$. Bounding the <largest prime factor> is equivalent to restricting the integer to be $S$-smooth for a suitable finite $S$.

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