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 mea culpa
by Ady TZIDON)
No... F.K. isn't right.
He said 37 is the right answer. Please read Charlie's solution.
Posted by Thalamus
on 2004-03-17 14:39:16