What ia the greatest number that can be made using each of the following digits 5,3,1,4,7

Well, first let's agree that we're not going into

orbit, with numbers like

754³¹ or 7⁵⁴³¹.

We'll just stick to normal numbers ... no fractions,

decimals, powers, etc.

Then the biggest number you can make is 75,431.

And the smallest number you can make is 13,457.