#include <iostream>
#include <algorithm>
using namespace std;

long long gcd(long long a, long long b)
{
	if (b == 0) return a;
	return gcd(b, a % b);
}

long long lcm(long long a, long long b)
{
	return a * b / gcd(a, b);
}

int main()
{
	long long a, b;
	while (cin >> a >> b)
		cout << gcd(a, b) << " " << lcm(a, b) << endl;
	return 0;
}