#include<stdio.h>
int gcd(int a, int b) {
	if (b == 0)return a;
	else return gcd(b, a % b);
}
int main() {
	int n;
	int s[105] = { 0 };
	while (scanf("%d", &n) != EOF) {
		int min = 1;
		for (int i = 0; i < n; i++) {
			scanf("%d", &s[i]);
		}
		for (int i = 0; i < n; i++) {
			min = min*s[i] /gcd(min, s[i]);

		}
		printf("%d\n", min);

	}
	return 0;
}