Theory:

An exponent is a small number written above and to the right of the base number, tells how many times the base number is being multiplied.
The base a raised to the power of n is equal to the multiplication of a, n times:
a ·a ·a ·... ·a = an
\(a\) is the base and \(n\) is the exponent.
 
For example, 3 to the power 4” may be written as 34. Here, the base number is \(3,\) and the exponent is \(4\). It means that \(3\) is being multiplied by itself \(4\) times: \(3\) x \(3\) x \(3\) x \(3\).
Where,
\(3\) x \(3\) x \(3\) x \(3\) \(=\) \(81\) or 34 = \(81.\)
Example:
31=332=3 ·3=933=3 ·3 ·3=2734=3 ·3 ·3 ·3=8135=3 ·3 ·3 ·3 ·3=243