\documentclass[11pt]{scrartcl}
\usepackage{evan}

\begin{document}
\title{CAMO 2022/3}
\subtitle{Evan Chen}
\author{Twitch Solves ISL}
\date{Episode 137}
\maketitle

\section*{Problem}
Let $a_1 < a_2 < \dots < a_n$ be positive integers such that
the set of positive integers can be partitioned into an infinite number
of sets, each of the form $\{a_1k,a_2k,\dots,a_nk\}$ for some positive integer $k$.
Prove that $a_i\mid a_n$ for all $1\le i\le n$.

\section*{Video}
\href{https://www.youtube.com/watch?v=MLRLaRGDr0c&list=PLi6h8GM1FA6yHh4gDk_ZYezmncU1EJUmZ}{\texttt{https://youtu.be/MLRLaRGDr0c}}

\section*{External Link}
\url{https://aops.com/community/p24734467}

\newpage

\section*{Solution}
See Twitch stream.

\end{document}
