263. Ugly Number.java

class Solution {
    public boolean isUgly(int n) {
        if(n <= 0) return false;
        if(n == 1) return true;
        while(n % 2 == 0) n = n / 2;
        while(n % 3 == 0) n = n / 3;
        while(n % 5 == 0) n = n / 5;
        if(n == 1) return true;
        else return false;
    }
}