sample tests are also written incorrectly, actually.

Please read the docs about authoring.

Hi,

• ... why...? I mean, we already have loads of kata about primes...

• the full test suite isn't writtent properly

• the full test suite contains wrong expectations:

  Traceback (most recent call last):
    File "/workspace/default/tests.py", line 19, in test_examples
      self.assertEqual(product_of_two_primes(100), False)
  AssertionError: (2, 5) != False
  

• There should be at least some input and a result that depends on inputs. A fixed string is not an interesting kata.
• No sample tests.