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:
66 x 66 x 66 x 66 x ... (for a total of 89 times) = 869781694499313595251069712372781285442268307703407609411564185165924319059265184492193718485002799958154376636970109681886164836384140694396480794285311982043136
Therefore, 66 to the power of 89 is 869781694499313595251069712372781285442268307703407609411564185165924319059265184492193718485002799958154376636970109681886164836384140694396480794285311982043136.