#include <iostream>

using namespace std;

u_int lcm(const u_int* a, u_int n)
{
	u_int max = a[0];
	for (u_int i = 1; i < n; i++)
		if (a[i] > max)
			max = a[i];

	u_int res = max;
	while (1) {
		u_int i = 0;
		for (; i < n; i++)
			if (res % a[i])
				break;

		if (i == n)
			return res;
		else
			res += max;
	}
}

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

	u_int a[n];
	for (u_int i = 0; i < n; i++)
		cin >> a[i];

	cout << lcm(a, n) << endl;
	
    return 0;
}