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:
86 x 86 x 86 x 86 x ... (for a total of 91 times) = 109486119438778511155755652991151091317816184356424071315840329636737443060566304098994176952086009066701958592592711884263078669376835529990761515887913477031168355790787444736
Therefore, 86 to the power of 91 is 109486119438778511155755652991151091317816184356424071315840329636737443060566304098994176952086009066701958592592711884263078669376835529990761515887913477031168355790787444736.

