# -*- coding: utf-8 -*-
import sys

def gcd(a,b):
    while a%b:
        a,b = b,a%b
    return b

def lcm(a,b):
    return a*b/gcd(a,b)

for s in sys.stdin:
    a,b = map(int,s.split())
    a,b = max(a,b),min(a,b)
    print gcd(a,b),lcm(a,b)