public void LargestProduct13DigitSeries_23514624000()
        {
            var largestProduct = E008_Largest_product_in_a_series.LargestProductInASeries(Series, 13);

            Assert.Equal(23514624000, largestProduct);
        }
        public void LargestProduct4DigitSeries_5832()
        {
            var largestProduct = E008_Largest_product_in_a_series.LargestProductInASeries(Series, 4);

            Assert.Equal(5832, largestProduct);
        }