LeetCode----263. Ugly Number(Java)

 package isUgly263;
 /*
  * Write a program to check whether a given number is an ugly number.

 Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 6, 8 are ugly while 14 is not ugly since it includes another prime factor 7.

 Note that 1 is typically treated as an ugly number.
  */
 public class Solution {
     public static boolean isUgly(int num) {
         if (num<=0)
             return false;
         while(num>5){
             if(num%2==0)
                 num=num/2;
             else if(num%3==0)
                 num=num/3;
             else if(num%5==0)
                 num=num/5;
             else
                 return false;
         }
         return true;
     }
     public static void main(String[] args) {
         // TODO Auto-generated method stub
         int num=14;
         System.out.println(isUgly(num));
     }

 }