Question 439291
<pre>
  ___      ___     _______     __________    
4&#8731;81  = 4&#8731;9*9 = 4&#8731;3*3*3*3 = 4&#8731;(3*3*3)*3 = 
  ____       __  _        __      _  
4&#8731;3³*3 = 4*&#8731;3³*&#8731;3 = 4*3*&#8731;3 = 12&#8731;3

And you leave it like that.

Edwin</pre>