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Factor Finder
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.. tags:: tiny, beginner, math


A number’s factors are any two other numbers that, when multiplied with each
other, produce the number. For example, 2 × 13 = 26, so 2 and 13 are factors of
26. Also, 1 × 26 = 26, so 1 and 26 are also factors of 26. Therefore, we say
that 26 has four factors: 1, 2, 13, and 26.

If a number only has two factors (1 and itself), we call that a prime number.
Otherwise, we call it a composite number. Use the factor finder to discover
some new prime numbers! (Hint: Prime numbers always end with an odd number that
isn’t 5.) You can also have the computer calculate them with Project 56, “Prime
Numbers.”


.. collapse:: factor_finder.py

   .. literalinclude:: factor_finder.py
      :language: python
      :linenos:


https://inventwithpython.com/bigbookpython/project24.html