#include<iostream>
using namespace std;

int gcd(int a,int b)
{
	return b==0?a:gcd(b,a%b);
}

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;
}