public string GetSolution()
{
var i = 1;
long number = 0;
long divisors = 0;
while (divisors < 500)
{
number = GetTriangleNumber(i);
var primeFactors = Factors.GetPrimeFactors(number);
divisors = GetDivisorCount(primeFactors);
i++;
}
return(number.ToString());
}
public void GetPrimeFactors()
{
Assert.Equal(6, Factors.GetPrimeFactors(1000).Count());
}
public string GetSolution()
{
return(Factors.GetPrimeFactors(600851475143).Max().ToString());
}
public void GetPrimeFactors_TooSmallValueGiven_ThrowsExeption()
{
Assert.Throws <ArgumentOutOfRangeException>(() => Factors.GetPrimeFactors(0));
}
public void GetPrimeFactors_SupportedValueGiven_ReturnsCorrectSizeArray()
{
int[] results = Factors.GetPrimeFactors(10);
Assert.That(results.Length, Is.EqualTo(3));
}
public void GetPrimeFactors_SupportedValueGiven_ReturnsArrayOfFactors()
{
int[] results = Factors.GetPrimeFactors(10);
Assert.That(results, Is.EquivalentTo(new int[] { 1, 2, 5 }));
}