.. include:: <mmlalias.txt>

Exercise: Primeness (Function)
==============================

.. jf-topic:: python.basics.exercises.function_primeness
   :dependencies: python.basics.exercises.for_primeness,
		  python.basics.exercises.max_numbers_function,
		  python.basics.python_0270_functions

Modify the prime number detection program from :doc:`here
</trainings/material/soup/python/python_0195_exercises/exercise_while_primeness>`
or :doc:`here
</trainings/material/soup/python/python_0230_exercises/exercise_for_primeness>` as follows.

* Push the *prime number checking algorithm* into a function.
  (``is_prime()`` is a likely name for the function.)

  * The function takes the number-to-test-for-primeness as parameter.
  * The function returns whether the number-to-check is prime (a
    boolean value)

* The rest of the program (taking the number from the commandline, or
  using ``input()`` to prompt the user for the number) remains
  intact. The only change is that the new function is called with the
  number as parameter, rather than implement the algorithm in top
  level code.

  
Dependencies
------------

.. jf-topicgraph::
   :entries: python.basics.exercises.function_primeness