Definition: In this task you will be given a list of lists, of numbers. For every inner list, you should multiply every number in that list and put the results in your answer. The output should be a list of numbers with the same length as the number of the lists in the input list.
Input: [[15, 34, 40, 46], [23, 46, -37, -16], [-49, 43, -11, -6, 11]]

[938400, 626336, -1529682]