The first step 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:
27 x 27 x 27 x 27 x ... (for a total of 90 times) = 664873118457859565327991287081559533294912222632819802610568135499305204269921340346297290809262484944930020118813628984214441849
Therefore, 27 to the power of 90 is 664873118457859565327991287081559533294912222632819802610568135499305204269921340346297290809262484944930020118813628984214441849.