If I consider the relation $R$ on the set $X={3,5,30,45}$ and I define it by this statement:

$\forall$ $m,n \in X$, $m$ $R$ $n$ if and only if there exists an integer $K$ such that $m=kn$.

How could I prove $R$ is a partial order on $X$? Would I have to draw a Hasse Diagram?

Thanks for your help.