Question

Find the Next Number - 1, 7, 26, 63, 124, 215, 342
Find the next number of the following series? 1, 7, 26, 63, 124, 215, 342, ?

Answer 1

2 x 2 x 2 -  1 = 7
3 x 3 x 3 - 1 = 26
4 x 4 x 4 - =1 = 63
 ..........
8 x 8 x 8 - 1 = 511