#include <iostream>

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 && a != EOF)
    {
        int d = gcd(a, b);
        cout << d << " " << (a / d) * b << endl;
    }
    return 0;
}