The first step a math tutor would suggest is to understand what it means when a number has an exponent. The “power” of a number indicates how many times the base would be multiplied by itself to reach the correct value.
The second step is to write the number in the base-exponent form, and lastly calculate what the final result would be. Consider the example of 2 to the power of 4: in exponent form that would be
So re-applying these steps to our particular problem, we first convert our word problem to a base-exponent form of:
To simplify this, all that is needed is to multiply it out:
42 x 42 x 42 x 42 x ... (for a total of 91 times) = 5196194826910991975366778808294818383763832156886608446923094374129861248915703229723677910654263295071172897005228361077116464357379846946640887808
Therefore, 42 to the power of 91 is 5196194826910991975366778808294818383763832156886608446923094374129861248915703229723677910654263295071172897005228361077116464357379846946640887808.