Question

What 3 numbers multiply to get 63?

Answer 1

There are many combinations if the numbers are not required to be integers.

If they are required to be integers, I'd suggest:

3*7*3 = 63

Answer 2

63 = 9 * 7

So (3*3) * 7 = 63

The answer is 3 * 3 * 7 = 63