#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
int gcd(int n, int m){
    //大小交换
     if(m>n){
         int temp = n;
         n =m;
         m = temp;
     }
        int r =1;
        while(m!=0){
         r = n%m;
         n = m;
         m = r;
        }
    return n;
}
int main()
{
    int t, x;
    cin>>t;
    while(t--){
      int n,b, sum=1;
      cin>>n;
      for(int i=0; i<n; i++){
          cin>>x;
         b = gcd(sum, x);
         sum = sum/b*x;
        }
        printf("%d\n",sum);
    }
 return 0;
}