Powerful numbers (4,8,9,16,25,27... )are defined as follows: if a prime p divides n then p² must also divide n.
(8,9) is a couple of two consecutive numbers,both of them being powerful.
Find another pair(s) like that.

The more the merrier!!

(In reply to re(2): Too many? by ed bottemiller)

No way

24 is divisible by 3 but not by 9 .

Please read ALL MY RELEVANT POSTS.

Ady

Posted by Ady TZIDON on 2010-08-09 15:52:13