#include<stdio.h>
#include<algorithm>
using namespace std;
long long int lcm(long long int a, long long int b)
{
    return a*b/__gcd(a,b);
}
int main()
{
    freopen(".10.in", "r", stdin);
    freopen(".10.out","w",stdout);
    int i, n, t;
    long long int LCD;
    scanf("%d", &n);
    for( i = 0 ; i < n ; i++ )
    {
        scanf("%d", &t);
        if( !i ) LCD = t;
        else LCD = lcm(LCD, t);
    }
    printf("%lld", LCD);
}