#include <iostream>

using namespace std;

typedef long long ll;

ll gcd(ll a,ll b){
    return b==0?a:gcd(b,a%b);
}
ll lcm(ll a,ll b){
    return a*b / gcd(a,b);
}
int main(){
    ll a,b;
    while(cin >> a >> b){
        cout << gcd(a,b) << " " << lcm(a,b) << endl;
    }
    return 0;
}