title: Multiply elements of list of lists with each other
body: <p>I have List of lists <code>List[List[Int] to n]</code> and <code>Lists[Int]</code> are of different size and i want to multiply values all of them between each other.
  For List(List(1,2,3), List(4,5), List(6))  it would be</p>
  
  <p>1*4*6, 1*5*6, 2*4*6, 2*5*6, 3*4*6, 3*5*6</p>
  
  <p>and so on and return result as a List of resulting values <code>List[24, 30, 48, 60, 72, 90]</code></p>