def fun(target : List[Int])(divider : Int) : List[Int] = {
  if(target.isEmpty) return target
  if (target.head % divider == 0){
    target.head :: fun(target.tail)(divider)
  }else{
    fun(target.tail)(divider)
  }
}

var s =fun(List(12,14,16,22,23))_

println(s(2))