#include<iostream>
using namespace std;

int gcd(int x,int y){
  if(y==0)return x;
  return gcd(y,x%y);
}
int main(){
  int a,b;
  while(cin>>a>>b){
    int g=gcd(a,b);
    cout<<g<<' '<<a/g*b<<endl;
  }
}

