What will this comprehension provide you?
{x : [y for y in range (1, x) if x % y == 0] for x in range (2, 100)}
A dictionary whose keys are the numbers from 2 to 99 (inclusive), and their respective values are their factors.
A dictionary whose keys are the numbers from 2 to 99 (inclusive), and their respective values are a list from 1 to the key value itself (inclusive).
A dictionary whose keys are the numbers from 2 to 99 (inclusive), and their respective values are the even numbers from 1 to the key value itself (inclusive).
A dictionary whose keys are the numbers from 2 to 99 (inclusive), and their respective values are the odd numbers from 1 to the key value itself (inclusive).