C++ :

#include <iostream>
using namespace std;
int main() {
    int a, b, temp, gcd, lcm;
    cin >> a >> b;
    int n1 = a, n2 = b;
    while (n2 != 0) {
        temp = n2;
        n2 = n1 % n2;
        n1 = temp;
    }
    gcd = n1;
    lcm = (a * b) / gcd;
    cout << gcd << " " << lcm;
    return 0;
}