#include<iostream>
#include<algorithm>
#include<vector>
#include<stack>
#include<queue>
#include<cstdio>
#include<climits>
#include<cmath>
#include<cstring>
#include<string>

#define f first
#define s second
#define mp make_pair

#define REP(i,n) for(int i=0; i<(int)(n); i++)
#define FOR(i,c) for(__typeof((c).begin()) i=(c).begin(); i!=(c).end(); i++)
#define ALL(c) (c).begin(), (c).end()
#define EPS (1e-10)
using namespace std;

typedef unsigned int uint;
typedef long long ll;

ll gcd(ll a, ll b){
  if(a > b) swap(a,b);
  if(a == 0) return b;
  return gcd(a,b%a);
}

int main(){
  ll a,b;
  while(cin>>a>>b) cout<<gcd(a,b)<<" "<<a*b/gcd(a,b)<<endl;
  return 0;
}