I have a homework question which i'm struggling with, i would be interested in what method i should use to solve the following problems:
> Let a be a positive integer. Evaluate the following: > (i) gcd(a,a^2) > (ii) gcd(a,a+1) > (iii) gcd(a,a+2) > (you do not need the Euclidean Algorithm to answer these questions.)
Im not looking for the answers to these questions rather the approach i should take to solving them and problems like them? I've searched and while i can find links to solving gcd's they all seem to be of the style gcd(2,4) etc.
Thanks for the help (i know its probably very simple.)