#include <iostream>
using namespace std;

int gcd(int a, int b);

int main()
{
    int a, b;
 
    while (cin >> a >> b){
        cout << gcd(a, b) << " " << a / gcd(a, b) * b << endl;
    }
 
    return (0);
}

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