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