- #1
annoymage
- 362
- 0
Homework Statement
n2 has the form 3k or 3k+1 for some integer k
Homework Equations
n/a
The Attempt at a Solution
i've tried to table it for me to see, but still i don't have the general idea, should i show n2 is either divisable by 3k or 3k+1? if yes i still don't know owho