# Symbols:Number Theory/Does Not Divide

## Is Not a Divisor

$x \nmid y$

This means $x$ is not a divisor of $y$.

The $\LaTeX$ code for $x \nmid y$ is x \nmid y .

## Also denoted as

This symbol is preferable to $x \mathrel {\not \backslash} y$ due to the somewhat confusing appearance of this symbol:

The $\LaTeX$ code for $x \mathrel {\not \backslash} y$ is x \mathrel {\not \backslash} y .