5 is not divisible by a power of 2 (duh, its prime)
Interesting way to see if 5 is divisible by 2. I think the same way:
What is 9 times 7? Well, it has to be less than 70 because 9It has to be odd since 9 and 7 are odd.
61 and 67 are prime so they're out.
65 and 69 are square-free and 9 is a perfect square.
So, 7*9 = 63.
(apologies to the actual (and funnier) version that I read but can't quite remember in Symmetry of the Primes)
So, I just set the phone down and watch tv...picking it up occasionally to say "uh-huh" and throw in an occasional "I understand". That last one goes a LONG way on brownie points, and keeps you from having to listen or care....
Don't forget "I told you that bitch crazy."
You can bring any calculator you like to the midterm, as long as it doesn't dim the lights when you turn it on. -- Hepler, Systems Design 182