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:
73 x 73 x 73 x 73 x ... (for a total of 99 times) = 29441718225054527870706437189699977768288601537257462330405414213838137304826817267350778717718123822798291453531595307558472144358880919819033983926426736611748346483255785726848362137
Therefore, 73 to the power of 99 is 29441718225054527870706437189699977768288601537257462330405414213838137304826817267350778717718123822798291453531595307558472144358880919819033983926426736611748346483255785726848362137.