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

}