Generate Primes - Brute Force

generatePrimesBruteForce.cs

public static List<int> returnPrimeNumbersToN(int n)
{
    List<int> primeNumbers = new List<int>();

    // populate list
    for (int i = 2; i <= n; i++)
    {
        primeNumbers.Add(i);
    }

    // remove non-prime numbers
    int size = primeNumbers.Count;
    for (int i = 0; i < size; i++)
    {
        for (int j = i + 1; j < size; j++)
        {
            if (primeNumbers[j] % primeNumbers[i] == 0)
            {
                primeNumbers.RemoveAt(j);
                size = primeNumbers.Count;
            }
        }
    }

    return primeNumbers;
}