Don De Tina
Reputation
413
Top tag
Next privilege 500 Rep.
Access review queues
 Feb 25 awarded Yearling Mar 21 awarded Famous Question Apr 25 awarded Notable Question Mar 27 awarded Good Question Nov 6 awarded Yearling Apr 17 accepted For any prime $p > 3$, why is $p^2-1$ always divisible by 24? Feb 23 awarded Popular Question Jan 8 awarded Nice Question Jul 28 comment For any prime $p > 3$, why is $p^2-1$ always divisible by 24? Thank you all for your responses. What I've received in insight has far exceeded my expectations. Jul 28 awarded Scholar Jul 28 comment For any prime $p > 3$, why is $p^2-1$ always divisible by 24? Thanks. Your brain works the same way mine does. Jul 28 comment For any prime $p > 3$, why is $p^2-1$ always divisible by 24? I hadn't seen this approach previously. Thanks. Jul 28 comment For any prime $p > 3$, why is $p^2-1$ always divisible by 24? Thank you Qiaochu. I've pursued your suggestions. Very motivating. Jul 28 awarded Student Jul 27 asked For any prime $p > 3$, why is $p^2-1$ always divisible by 24? Jul 26 awarded Teacher Jul 26 answered What does it mean to be going 40 mph (or 64 kph, etc.) at a given moment? Jul 25 awarded Critic Jul 21 awarded Supporter Jul 20 awarded Autobiographer