Find the smallest multiple of 9 with no odd digits.
Use your head ONLY.
(In reply to answer
by Dej Mar)
I accept your remark bona fide.
As it is worded , 0 is the correct answer and I SHOULD HAVE ADD THE WORD "positive" to get what I meant.
Regarding -288 there is an infinite number of smaller than -288 values like -28828800000000 and others, so your inclusion of this specific number was without any rhyme or reason.