Powerful numbers (4,8,9,16,25,27... )are defined as follows: if a prime p divides n then p^{2} 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

Definition by Gamer)

Wolfram Math's definition:

**An ****integer**** m such that if p divides m then p^2 divides m , is called a powerful number.**

__is not differentt from mine.__