C++ Exercises: Check whether a given number is an Ugly number or not

C++ Numbers: Exercise-1 with Solution

Write a program in C++ to check whether a given number is an Ugly number or not.

Pictorial Presentation:

Sample Solution:

C++ Code :

# include <iostream>
# include <string>
using namespace std;
int main()
{
int n,x=0;
 cout << "\n\n Check whether a given number is an Ugly number:\n";
 cout << "----------------------------------------------------\n";
cout << "Input an integer number: ";
cin >> n;
      if (n <= 0) {  
            cout <<"Input a correct number.";  
        }
       while (n != 1) 
       {  
            if (n % 5 == 0) 
            {  
                n /= 5;  
            } 
            else if (n % 3 == 0) 
            {  
                n /= 3;  
            } 
            else if (n % 2 == 0) 
            {  
                n /= 2;  
            } 
            else 
            {  
                cout <<"It is not an Ugly number."<<endl; 
                x = 1;  
                break;  
            }  
        } 
		        if (x==0)
		        { 
                cout <<"It is an Ugly number."<<endl;
                }
}

Sample Output:

Check whether a given number is an Ugly number:                       
----------------------------------------------------                   
Input an integer number: 25                                            
It is an Ugly number.

Flowchart:

C++ Code Editor:

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