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: Accepted)

using System;


namespace Sample
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            string[] str = Console.ReadLine().Split(' ');
            int[] a = Array.ConvertAll(str, int.Parse);
            for(int i = 0; i < n - 1; i++)
            {
                a[i + 1] = lcm(a[i],a[i+1]);
            }
            Console.WriteLine(a[n - 1]);
        }

        static int gcd(int a,int b)
        {
            int x = a, y = b, r;
            while(y != 0)
            {
                r = x % y;
                x = y;
                y = r;
            }
            return x;
        }

        static int lcm(int a, int b)
        {
            return (a * b) / gcd(a, b);
        }
    }
}