Question 25
For each integer $n \ge 4,$ let $a_n$ denote the base-$n$ number $0.\overline{133}_n.$ The product $a_4 a_5 \ldots a_{99}$ can be expressed as $\dfrac{m}{n!},$ where $m$ and $n$ are positive integers and $n$ is as small as possible. What is the value of $m?$