Whats the smallest number ("the magic number") that can satisfy these conditions?
- its positive
- it is not divisible by any number below 20 (excluding 1)
- the average of the digits is an even number between 3 and 9
(In reply to Solution
by Federico Kereki)
Is the average of the digits not 5? Or am I missing something?
Posted by Wally
on 2004-03-17 17:16:14