#include <bits/stdc++.h>

using namespace std;

int gcd(int a, int b)
{
    if (b == 0) return a;
    return gcd(b, a % b);
}

int main()
{
    int a, b;

    while (cin >> a >> b) {
        int c = gcd(a, b);
        cout << c << " " << a/c*b << endl;
    }
}