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 Ruby (judge verdict: Accepted)

def gcd(x,y)
	while y >0
		r =x%y
		x=y
		y=r
	end
	return x
end

def lcm(x,y)
	return x * y / gcd(x,y)
end

a=Array.new
n=gets.chomp.to_i
a=gets.chomp.split(" ").map{|i| i.to_i}

a.sort!{|a, b| b <=> a }


while a.length>=2
	a[1]=lcm(a[0],a[1])
	a.shift
end
puts a[0]