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:
39 x 39 x 39 x 39 x ... (for a total of 91 times) = 6121801443080262811390100463533528152503690908519799283952221309060521166855489490547852559068859975306434802981827274573223851056712273624491639
Therefore, 39 to the power of 91 is 6121801443080262811390100463533528152503690908519799283952221309060521166855489490547852559068859975306434802981827274573223851056712273624491639.