the list connecting dot primes append( append(the value to append all lists have this function built in so we need to look at this new construction we have the list"primes"followed by dot which acts as connector this is followed by the name of function"appendthis function is not standard python function like print(or len(instead it is function that is "built into the list itself the list has its own function which appends to that list alternativelythink of "primes append()as function that appends to primes