#include<iostream>
using namespace std;
typedef long long int ll;
ll gcd(ll a, ll b) {
	if (b == 0)return a;
	else return 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;
}