#include<iostream>
using namespace std;
int gcd(int a,int b)
{
	return b==0?a:gcd(b,a%b);
}
int main()
{
	int a,b,d;
	while(cin>>a>>b)
	{
	if(a<b)
	{
		int m=a;
		a=b;
		b=m;
	}
	d=gcd(a,b);
	cout<<d<<" "<<a/d*b<<endl;
   }
	return 0;	
}