What number comes next in the series: 28, 65, 126, 217, 344, ?

💡 Solution & Explanation

The terms follow n³ + 1 for n = 3, 4, 5, 6, 7: for example 3³ + 1 = 28. The next value of n is 8, so the answer is 8³ + 1 = 513.