#include<bits/stdc++.h>

using namespace std;

const int N = 503;
int n;
int t;
long long a[N];
long long ans;

long long gcd(long long a, long long b){
    if (b == 0) return a;
    else return gcd(b,a % b);
}

long long lca(long long a,long long b){
    return (a * b) / gcd(a,b);
}

int main(){
    //freopen("2.in.txt","r",stdin);
    //freopen("2.out.txt","w",stdout);

    cin >> t;

    while(t --> 0){

        cin >> n;

        ans = 1e18;
        for(int i = 0; i < n; ++i)
            cin >> a[i];

        for(int i = 0; i < n; ++i){
            for(int j = i + 1; j < n; ++j){
                ans = min(ans,lca(a[i], a[j]));
            }
        }
        cout << ans << "\n";
    }

    return 0;
}