数学

#include <cstdio>
#include <iostream>

using namespace std;

int gcd(int a, int b) {
    return b? gcd(b, a % b): a;
}

int lcm(int a, int b) {
    return a * b / gcd(a, b);
}

int main() {
    int a, b;
    cin >> a >> b;
    printf("%d %d", gcd(a, b), lcm(a, b));

    return 0;
}