#include <iostream>

inline u_long lcm(u_long a, u_long b) {
    return a * b / std::__gcd(a, b);
}

int main(void) {
    u_long a, b;

    while (std::cin >> a >> b) {
        std::cout << std::__gcd(a, b) << " " << lcm(a,b) << std::endl;
    }

    return 0;
}