public void VsaucePrime()
{
var actual = PrimeUtilties.GetFirstNPrimes(3336);
ulong expected = 30941;
Assert.Equal(expected, actual.Last());
}
public void HundredthPrimeNumberIs541()
{
var actual = PrimeUtilties.GetFirstNPrimes(100);
ulong expected = 541;
Assert.Equal(expected, actual.Last());
}
static void Main(string[] args)
{
if (args.Length < 2)
{
ShowUsage();
}
else
{
var command = args[0];
var input = args[1];
if (!ulong.TryParse(input, out var result))
{
Console.WriteLine("Fenumbler: Only positive 64-bit integers are valid for the second argument.");
}
else
{
switch (command)
{
case "-isprime":
ShowPrimeFacts(result);
break;
case "-count":
var i = 0;
foreach (var prime in PrimeUtilties.GetFirstNPrimes(result))
{
Console.WriteLine($"{++i}: {prime}");
}
break;
case "-mersenne":
var j = 0;
foreach (var mersenne in PrimeUtilties.GetFirstNMersennes(result))
{
Console.WriteLine($"{++j}: {mersenne}");
}
break;
default:
ShowUsage();
break;
}
}
}
}
