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

    cout<<gcd(a,b)<<" ";
        cout<<a/gcd(a,b)*b<<endl;}
    return 0;
}

