#include<iostream>
#include<iomanip>
using namespace std;

int gcd(int a, int b)
{
     return(b ? gcd(b, a % b):a);
}

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