#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;
	}
}