public void CalculatePrimes()
{
var expectedPrimes = new List <long> {
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97
};
var primes = Primes.CalculatePrimesBelow(100);
Assert.AreEqual(expectedPrimes.Count, primes.Count());
Assert.AreEqual(expectedPrimes.Count, expectedPrimes.Intersect(primes).Count());
}