#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
ll gcd(ll a, ll b){
	return !b ? a : gcd(b, a % b); 
}

int main(){
	ios::sync_with_stdio(false);
	ll x, y;
	while(cin >> x >> y) cout<<gcd(x,y)<<" "<<x*y/gcd(x,y)<<"\n";
	return 0;
}