Untitled

using System;
using System.Collections;
using System.Text;
using System.Text.RegularExpressions;

namespace ConsoleApp8
{
    class Program
    {
        // function of bài 7
        public static bool isPrime(int n)
        {
            if (n < 2) return false;
            int square = (int)Math.Sqrt(n);
            for (int i = 2; i <= square; i++)
            {
                if (n % i == 0)
                    return false;
            }
            return true;
        }

        static void Main(string[] args)
        {

            //bài 7

            Console.Write("nhap n: ");
            int n = Int32.Parse(Console.ReadLine());
            int count = 0;
            int i = 2;
            while (count < n)
            {
                if (isPrime(i))
                {
                    Console.Write(i + " ");
                    count++;
                }
                i++;
            }



        }


    }
}