#include <iostream>
using namespace std;

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

