Problem:
Least Common Multiple

Find the least common multiple (LCM) of given n integers.

Input

n
a1 a2 ... an

n is given in the first line. Then, n integers are given in the second line.

Output

Print the least common multiple of the given integers in a line.

Constraints

2 ≤ n ≤ 10

1 ≤ ai ≤ 1000

Product of given integers ai(i = 1, 2, ... n) does not exceed 231-1

Sample Input 1

3
3 4 6

Sample Output 1

12

Sample Input 2

4
1 2 3 5

Sample Output 2

30

Solution in C# (judge verdict: Time Limit Exceeded)

using System;
using System.Linq;

namespace _1_C
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int[] x = Console.ReadLine().Split().Select(int.Parse).ToArray();
            long a = 1;
            while (true)
            {
                int now = 0;
                for (int i = 0; i < n; i++)
                {
                    if (a % x[i] == 0)
                    {
                        now++;
                    }
                }
                if (now == n)
                {
                    break;
                }
                a++;
            }
            Console.WriteLine(a);
            Console.ReadLine();
        }
    }
}