imprimir los números primos del 0 al 100

public static void Main(string[] args)
{
    int[] arr = new int[100];
    for (int i = 2; i < arr.Length; i++)
    {
        arr[i] = i;
    }
    for (int i = 2; i < arr.Length; i++)
    {
        if (arr[i] == 0) continue;
        for (int j = 2; j < arr.Length; j++)
        {
            if (i * j < arr.Length) arr[i * j] = 0;
            else break;
        }
    }
    for (int i = 2; i < arr.Length; i++)
    {
        if (arr[i] != 0) Console.WriteLine(arr[i]);
    }
}