#include <iostream>
using namespace std;

int gcd(int a, int b){
    if(b == 0) return a;
    else return gcd(b, a%b);
}
int main(void){
    int a, b;
    while(cin >> a >> b){
        int s = gcd(a, b);
        cout << s << " " << a*b/s << endl;
    }
    return 0;
}

