I've not done this for a while so when I came across a couple of puzzles I immediately thought of you guys! I wasn't sure where to post this, but having looked at the puzzles these are very much mathematically focused so thought that the Math forum was the best place.
Ok, so puzzle 1:
Why is that if p is a prime number bigger than 3, then p^2-1 is always divisible by 24 with no remainder?
Dave
Ok, so puzzle 1:
Why is that if p is a prime number bigger than 3, then p^2-1 is always divisible by 24 with no remainder?
Dave