# Congruence classes

1. Sep 29, 2005

### shaner-baner

Here is a fun problem, it's hard to write out clearly, but I'll try to do it w/ little confusion.
Is it, or is it not true that
(2^2^....^2)(n times)=(2^2^...^2)(n-1 times) mod n
so for example, when $$n=2$$, $$2^2=2$$ ->
$$4=2$$ mod 2.

2. Oct 6, 2005

### Jarvis Bull Dawg

He he sorry.

Last edited: Oct 7, 2005