Last 2 times I have flown afternoon flights on Continental from Newark to Charleston, SC...
Now there's your problem. As for it being "on-time", does it mean on-time arrival? Philly/New York flight times are padded by 60-90 minutes. So if you plane takes off less than an hour late, it will probably land "on-time."
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)
Saliva causes cancer, but only if swallowed in small amounts over a long period of time. -- George Carlin