Quote:
Originally Posted by Batalov
Anyone can factor N=187!
Try and factor something really hard, like N=6 or ...maybe 15.

First time I read this I thought it said "N= 187!"  the product of the integers from 1 to 187.
I can factor 187 mentally (2 doesn't divide it, 3 doesn't divide it, 5 doesn't divide it, 7 doesn't divide it, 11,  divides it!) , and anyone can factor 187! with pencil and paper, if they can reckon the primes up to 187.