building NFA for { a^p; p is a prime number, m is a fixed number and m >p >0 }

$ \{a^p; p$ is a prime number, $ m$ is a fixed number and $ m\geq p \geq 0 \}$

I know this is regular since it is finite, but I don’t understand how to build an NFA for this if we do not know what $ m$ is. Is there a way to draw the NFA regardless?