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:
56 x 56 x 56 x 56 x ... (for a total of 90 times) = 21723131468374213287883142970038427685329509367290382292283492627411409793910435378156110965403644229998724944012860723723143764433074834173505932470125592576
Therefore, 56 to the power of 90 is 21723131468374213287883142970038427685329509367290382292283492627411409793910435378156110965403644229998724944012860723723143764433074834173505932470125592576.