Find the smallest multiple of 9 with no odd digits.
Use your head ONLY.
(In reply to
re: answer by Ady TZIDON)
Ady,
Actually, "smaller number" defined mathematically is a number closer to zero (or, superlatively  i.e., 'smallest', equal to zero). As negative numbers approach negative infinity they do not get 'smaller', but 'larger'. 'Smaller' and 'larger' is a reference to the magnitude (absolute value) of the number. Those numbers do, of course, become less and lesser  which is a different matter.

Posted by Dej Mar
on 20120801 11:17:24 