#include <iostream>
#include<cstdio>
using namespace std;
long long gcd(int a,int b)
{
    return b==0? a:gcd(b,a%b);
}

long long lcm(int a,int b)
{
    return a/gcd(a,b)*b;
}
int main()
{
    //freopen("in.txt","r",stdin);
    long long a,b;
    while(cin>>a>>b)
    {
        cout<<gcd(a,b)<<" "<<lcm(a,b)<<endl;
    }


    return 0;
}