#include <iostream>
#include <sstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <climits>
#include <cfloat>
using namespace std;

long long gcd(long long a, long long b){ // Ååöñ
    if(a == 0 || b == 0)
        return 0;
    if(b > a)
        swap(a, b);
    long long tmp;
    while((tmp = a % b) != 0){
        a = b;
        b = tmp;
    }
    return b;
}

long long lcm(long long a, long long b){ // Å¬ö{
    return a / gcd(a, b) * b;
}

int main()
{
    for(;;){
        long long a, b;
        if(!(cin >> a >> b))
            return 0;
        cout << gcd(a, b) << ' ' << lcm(a, b) << endl;
    }
}