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

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

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