#include<bits/stdc++.h>
#include <iostream>
using namespace std;

int gcd(int a, int b){
	if(b>0){ 
	    return gcd(b, a%b);
	}else{
        return a;
	}
}

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

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