#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cstring>
#include<string>
#include<cmath>
#include<queue>
#include<stack>
#include<vector>
using namespace std;

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

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