Leetcode Problem 263. Ugly Number

Algorithm

1. Check if n is less than or equal to 0. If it is, return false.
2. While n is divisible by 2, divide it by 2.
3. While n is divisible by 3, divide it by 3.
4. While n is divisible by 5, divide it by 5.
5. If n is now 1, return true; otherwise, return false.