Prime Numbers Write a Python function that, given a whole number (integer), returns the list of prime numbers up to that integer. Have your function deal with negative numbers by using Python's abs(olute) function. Recall that a number is a prime number if it is not divisible by any number except 1 and itself. Once your function is defined, use it to find all prime numbers up to 100, up to 1,000, and up to 10,000. Suggestion: you may want to write a "helper" function that, given a number, returns True/False depending on whether the number is prime Note: you can add elements to a list L by using the expression L.append(): for example, to add 1 to L, Lappend(1) Paste your function definition with some sample outputs here