Liczby pierwsze w C#.

[code lang=”csharp”]
<pre>using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication
{
class Program
{
static void Main(string[] args)
{
int n = 0;
Console.Write("Podaj liczbe: ");
n = Convert.ToInt32(Console.ReadLine());
bool[] tab = new bool[n + 1];
for (int i = 2; i * i &lt;= n; i++)
{</pre>
<!–more–>
<pre> if (tab[i] == true)
{
continue;
}
for (int j = 2 * i; j &lt;= n; j += i)
{
tab[j] = true;
}
}
Console.WriteLine("Liczby pierwsze z zakresu [1," + n + "]: ");
for (int i = 2; i &lt;= n; i++)
{
if (tab[i] == false)
{
Console.Write(i + " ");
}
}
Console.ReadKey();
}

}
}</pre>
[/code]

C# windows xp