Definition: In this task you will be given a list of numbers. You should remove any number that is not an integer (whole number). If every number is not an whole number then an empty list ("[]") should be returned. Otherwise, answer with the list of whole numbers separated by comma inside brackets.
Input: [10.503, 23, 0.107, -11, -41, -0.923, -3.882, 6.604, 21.091]

[23, -11, -41]