#include <cstdio>

unsigned gcd(unsigned a, unsigned b) {
  if (a < b) {
    a ^= b;
    b ^= a;
    a ^= b;
  }
  while (a % b != 0) {
    unsigned t = a;
    a = b;
    b = t % b;
  }
  return b;
}

int main() {
  unsigned a, b;
  while (true) {
    if (scanf("%d %d", &a, &b) != 2) { break; }
    unsigned d = gcd(a, b);
    unsigned m = a / d * b;
    printf("%d %d\n", d, m);
  }
  return 0;
}