1 #include<stdio.h>
 2 int main()
 3 {
 4     int a,b,c,n,t;
 5     scanf("%d",&n);
 6     while(n--)
 7     {
 8         scanf("%d%d",&a,&b);
 9         c=a*b;
10         while(b)
11         {
12             t=b;
13             b=a%b;
14             a=t;
15         }
16         printf("%d %d\n",t,c/t);
17     }
18     return 0;
19 }