Which is larger: 9^99 or 9^9^9? I am having/have had a very lengthy argument over which is larger, and would be glad to get an answer.
$${{\mathtt{9}}}^{{\mathtt{9}}} = {\mathtt{387\,420\,489}}$$
So your queston can be rephrased as;
Which is larger 9^99 or 9^387420849
NOW can you see which is larger? LOL