https://www.e-olymp.com/az/problems/1243

/*
    Author: Kanan Asgarli
    https://www.e-olymp.com/az/problems/1243
*/
#include <iostream>

using namespace std;
int n, res, l, a, tests;
int gcd(int a, int b){
    return b == 0 ? a : gcd(b,a%b);
    }
int lcm(int a, int b){
    return a/gcd(a,b)*b;
}
int main()
{
    cin>>tests;
    while( tests-- ){
        cin>>n;
        res = 1;
        for(int i = 0; i < n; i++ ){
            cin>>a;
            res = lcm(res,a);
        }
        cout<<res<<endl;
    }
    return 0;
}