Example: C++ Program to Find GCD of Two Numbers using Function

C
C++
C#
Java
Python
PHP

// C++ Program to Find GCD of Two Numbers using Function
#include <iostream>
using namespace std;

// This function will find the GCD number
void FindGCD(int x, int y) {
    int gcd, i;

    for (i = 1; i <= x && i <= y; ++i) {
        if (x % i == 0 && y % i == 0) {
            gcd = i;
        }
    }
    cout << "\nThe GCD number of " << x << " & " << y << " is: " << gcd << "\n";
}

// It's the driver function
int main() {
    int p, q;
    // p & q - To store the two positive numbers
    
    cout << "-----Enter the two positive integer numbers-----\n";
    cin >> p >> q;

    FindGCD(p, q);
    return 0;
}