public void TestGetnumberofprimes()
        {
            /*
             * The incredible formula n2−79n+1601 was discovered,
             * which produces 80 primes for the consecutive values 0≤n≤79.
             * The product of the coefficients, −79 and 1601, is −126479.
             */

            var sut = new E027Quadraticprimes();

            Assert.Equal(40, sut.GetnumberOfPrimes(a: 1, b: 41));
            Assert.Equal(80, sut.GetnumberOfPrimes(a: -79, b: 1601));
        }
        public void Solution()
        {
            /*
             * n2+an+b, where |a|<1000 and |b|≤1000
             * Find the product of the coefficients, a and b, for the quadratic expression that produces
             * the maximum number of primes for consecutive values of n, starting with n=0.
             */

            var sut = new E027Quadraticprimes();

            int product = sut.GetproductOfCoefficients();

            Assert.Equal(expected: -59231, actual: product);

            /*
             * Congratulations, the answer you gave to problem 27 is correct.
             *
             *  You are the 76937th person to have solved this problem.
             */
        }