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: [-53.648, -31.819, -11.004, -21.912, -6, -18.09, -25.26, 70, -47]

[-6, 70, -47]