#include <iostream>
#include <algorithm>

using namespace std;
typedef long long ll;
ll gcd(ll a,ll b)
{
	if(b == 0) return a;
	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;
}
