public List <BigInteger> NumbersWithTwoSqrt()
{
List <BigInteger> sqrts = new List <BigInteger>();
foreach (BigInteger element in Fib.Where(x => x.IsContainsTwo()).ToList())
{
sqrts.Add((BigInteger)Math.Exp(BigInteger.Log(element) / 2));
}
return(sqrts);
}
public BigInteger GetNumberWithMaxSumOfFiguresSquares()
{
BigInteger max = 0;
int maxSum = 0;
foreach (BigInteger element in Fib.Where(x => x.GetSquareOfFiguresSum() >= maxSum))
{
maxSum = element.GetSquareOfFiguresSum();
max = element;
}
return(max);
}
public int CountDivideByFiveNumbers()
{
return(Fib.Where(x => x % 5 == 0).ToList().Count);
}
public int CountDivideByItFiguresNumbers()
{
return(Fib.Where(x => x.FiguresSum() != 0 && x % x.FiguresSum() == 0).ToList().Count);
}
public int CountPrime()
{
return(Fib.Where(x => x.isPrime()).ToList().Count);
}
