Help: Digits question

Hi ,Can anyone help to work out how to solve this question? Thanks

Hey @pioneeringemu!
Here's a solution that uses the choices: can you think of any multiples of \(6\) that doesn't use any of the digits 04? Try and list out a few. Once you have a multiple 6 that satisfies that, that's a possibility for \(6N\). Can you figure out which one is the answer now?
While you try that out, I'll work out a solution that is more precise

@quacker88 thanks