Write a program to check the prime numbers and Add the all prime numbers of store in Array.

    class Program

    {

        static void Main(string[] args)

        {

            int sum = 0, count = 0;

            Console.WriteLine("Enter the size of the array");

            int n = int.Parse(Console.ReadLine());

            int[] arr = new int[n];

            Console.WriteLine("Enter the Array Elements");

            for (int i = 0; i < n; i++)

            {

                arr[i] = int.Parse(Console.ReadLine());

            }           

            Console.WriteLine("Your array element");

            for (int i = 0; i < n; i++)

            {

                Console.Write(arr[i] + " ");

            }

            Console.WriteLine();

            Console.WriteLine("Your prime numbers are:");

            for (int i = 0; i < n; i++)

            {

                int num = 0;

                for (int j = 2; j < arr[i]; j++)

                {

                    if (arr[i] % j == 0)

                    {

                        num = 1;

                        break;

                    }

                }

                if (num == 0)

                {

                    Console.WriteLine(arr[i]);

                    sum = sum + arr[i];

                    count++;

                }

            }

            Console.WriteLine("The number of prime numbers is:{0}", count);

            Console.WriteLine("The sum of prime no. is:{0}", sum);

            Console.WriteLine();

            Console.ReadLine();

        }

    }

OUTPUT: