Problem:
Show that is composite for all .
What I have so far:
In general,
but this only holds for odd.
Is there a way to factor when is even? Or would I have to find a solution specific to ?
Problem:
Show that is composite for all .
What I have so far:
In general,
but this only holds for odd.
Is there a way to factor when is even? Or would I have to find a solution specific to ?