#include<bits/stdc++.h>
#define int long long
using namespace std;
int gcd(int a,int b){
	if(b==0)return a;
	return gcd(b,a%b);
	}
signed main()
{
	int a,b;
	while(cin>>a>>b){
	 cout<<gcd(a,b)<<" "<<a*b/gcd(a,b)<<endl;
		}
	}