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)
The average of the digits of 37 is 5, which is odd.
Posted by Charlie
on 2004-03-17 08:48:49