how to find the exponent

an EXPONENT is superscript to the top right of a number, agebraic letter or brackets also know as an INDEX OR POWER. 4^{16. In this case it is the 16.} It can also included everything that apears in the position of the 16 such as

4^{n/4 where n is representinga value.}

I am sorry but this is not a question.  You need to be more specific!