# Sieve of Eratosthenes

Post date: Aug 27, 2009 8:11:44 AM

public class ListErot

{

public static void run(int max)

{

int[] lista = new int[(int)Math.Ceiling(max / 2d)];

int pos = 0;

lista[0] = 2;

for (int i = 3; i < max; i = i + 2)

{

lista[++pos] = i;

}

for (int i = 3; i < Math.Sqrt(max); i++)

{

lista = Array.FindAll<int>(lista,

x =>

x == i || x % i != 0);

}

long sum = 0;

foreach (var item in lista)

{

sum += item;

Console.WriteLine(item + "\t");

}

Console.WriteLine(sum);

}

}