## Question

Why does my cubes_by_four list not contain the right values?

## Answer

Some of the most common issues are:

- Using the wrong range: recall that
`range()`

includes the first number and excludes the stopping number, so if we want to go from 1 to 25, we’d write`range(1, 26)`

- Incorrectly checking if the cube is divisible by four: to check if something is evenly divisible by a number, we write
`if x % number == 0`

- Not
*cubing*the number: to cube something, write`x ** 3`