C++ Exercises: Print all factors of the number

Last update on December 20 2024 12:23:28 (UTC/GMT +8 hours)

Write a program in C++ to enter any number and print all factors of the number.

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Sample Solution:-

C++ Code :

#include <iostream> // Including the input/output stream library

using namespace std; // Using the standard namespace

int main() // Main function where the execution of the program starts
{
    int num, i; // Declare integer variables 'num' and 'i'

    // Display messages asking for input
    cout << "\n\n Print all factors of a number:\n";
    cout << "-----------------------------------\n";
    cout << " Input a number: ";
    cin >> num; // Read a number from the user

    cout << "The factors are: "; // Display a message before listing factors

    // Loop to find factors of the entered number
    for (i = 1; i <= num; i++) 
    {
        if (num % i == 0) // Check if 'i' divides 'num' completely (i.e., remainder is zero)
        {
            cout << i << " "; // If 'i' is a factor, display it
        }
    }

    cout << endl; // Move to the next line after displaying all factors
}

Sample Output:

 Print all factors of a number:                                        
-----------------------------------                                    
 Input a number: 63                                                    
The factors are: 1 3 7 9 21 63

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