Do you know everything about Factorials?

When I was in 7th grade at Amity Junior High School in Orange Connecticut, I gave a presentation on Factorial numbers.

Here’s some interesting code:

FOR i = 1 TO 80



PROCEDURE Factorial(n)

      IF n=1

            RETURN n


RETURN n*Factorial(n-1)


What do the base of natural logs (exp(1) = 2.718281828…), PI (3.14159…) and the square root of 2 have to do with Factorial ?

(In case you were wondering, I did not include the transcendental math in my 7th grade presentation)

I don’t know everything about the fascinating Factorials!