#include <stdio.h>
int main()
{

    long int a,b,max,min,temp;
    while(scanf("%ld%ld",&a,&b) != EOF)
    {
        max=a;
        min=b;
        if(a < b)
        {
            temp=a;
            a=b;
            b=temp;
        }            
        while(a%b != 0)
        {
            temp=a%b;
            a=b;
            b=temp;
        }
        printf("%ld %ld\n",b,max*min/b);
    }
    return 0;
}
老是提示RuntimeError：Float Point Error！