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:
55 x 55 x 55 x 55 x ... (for a total of 91 times) = 236050401779024253344418362337207510204104302099912492593286253933037558030635863949307852059726750359071888615996085390713599139189682318828999996185302734375
Therefore, 55 to the power of 91 is 236050401779024253344418362337207510204104302099912492593286253933037558030635863949307852059726750359071888615996085390713599139189682318828999996185302734375.