#include <iostream>
using namespace std;

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

int lcm(int a,int b){
    return a*b / gcd(a,b);
}

int main (int argc, char const* argv[])
{
    int a,b;
    while(cin >> a >> b){
        cout << gcd(a,b) << " " << lcm(a,b) << endl;
    }
    return 0;
}