public int EuclideanGreatestCommonDivisorAnyTest(int[] arrInts)
        {
            GreatestCommonDivisor commonDivisor = new GreatestCommonDivisor();

            return(commonDivisor.EuclidGCD(arrInts));
        }
        public int EuclideanGreatestCommonDivisorTwoTest(int a, int b)
        {
            GreatestCommonDivisor commonDivisor = new GreatestCommonDivisor();

            return(commonDivisor.EuclidGCD(new[] { a, b }));
        }