#include <iostream>
using namespace std;

long long gcd(long long a,long long b)
    {long long t;if(a>b)t=a,a=b,b=t;while(a)t=a,a=b%a,b=t;return 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;
}