#include <iostream>

using namespace std;

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

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;
  }

  return 0;
}