Code - Finding GCD of array

Question

Hi Guys, 

 

I get error with int[] conversion in the below code, please assist.

 

namespace GCD

{

class Program

{

static void Main(string[] args)

{

Console.WriteLine("Please enter the number");

int[] input = Convert.ToInt32(Console.ReadLine());

int output = UserProgramCode.GCD(input);

}

class UserProgramCode

{

public static int GCD(int[] array)

{

int a = 0, b = 0, gcd=0, t;

for (int i = 0; i < array.Length - 1; i++)

{

a = array[i];

b = array[i + 1];

while (b != 0)

{

t = b;

b = a % b;

a = t;

}

gcd = a;

}

return gcd;

}