1 #include<cstdio>
 2 #include<cstring>
 3 #include<stdlib.h>
 4 #include<algorithm>
 5 using namespace std;
 6 int gcd(int a,int b)
 7 {
 8     return b?gcd(b,a%b):a;
 9 }
10 int lcm(int a,int b)
11 {
12     return a/gcd(a,b)*b;
13 }
14 int main()
15 {
16     //freopen("in.txt","r",stdin);
17     int kase,m;
18     scanf("%d",&kase);
19     while(kase--)
20     {
21         int ans,num;
22         scanf("%d",&m);
23         for(int i=0;i<m;i++)
24         {
25             int A;
26             scanf("%d",&A);
27             if(i==0){ans=A;continue;}
28             num=A;
29             ans=lcm(ans,num);
30         }
31         printf("%d\n",ans);
32     }
33     return 0;
34 }