Which number is the odd one out in the series 1, 8, 27, 64, 124, 216?

Explanation

1. 01

   1, 8, 27, 64 and 216 are the cubes $1^3, 2^3, 3^3, 4^3, 6^3$.

2. 02

   The fifth term should be $5^3 = 125$, so 124 is wrong.