// PR Bab 15, soal 4 -- pembahasan.

#include <iostream>
using namespace std;

long long fpb(long long a, long long b) {
    while (b != 0) {
        long long sisa = a % b;
        a = b;
        b = sisa;
    }
    return a;
}

long long kpk(long long a, long long b) {
    return a / fpb(a, b) * b;
}

int main() {
    int n;
    cin >> n;

    long long k = 1;
    for (int i = 0; i < n; i++) {
        long long x;
        cin >> x;
        k = kpk(k, x);
    }

    cout << k << "\n";
    return 0;
}