hdu 1019(gcd & lcm)

// ，gcd & lcm 
// 
#include <cstdio>
#include <iostream>

int gcd(int a, int b) {
    return b ? gcd(b, a%b) : a;
}

int lcm(int a, int b) {
    return a / gcd(a, b) * b;
}

int main() {
    int t;
    scanf ("%d", &t);
    while (t--) {
        int n, a, b, i;
        scanf ("%d%d", &n, &b);
        a = 1;
        a = lcm(a, b);
        for (i=1; i<n; ++i) {
            scanf ("%d", &b);
            a = lcm(a, b);
        }
        printf ("%d
", a);
    }
    return 0;
}