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.

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