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

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

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

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