Question 215539
<pre><font size = 4 color = "indigo"><b> 
{{{((((((x^x)^x)^x)^x)^x)^x)^x}}}

When x=2

{{{((((((2^2)^2)^2)^2)^2)^2)^2=3.402823669*10^38}}}

which is a 39-digit number.  When it goes to infinity,
obviously the value will go to infinity too.

Edwin</pre>