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:
86 x 86 x 86 x 86 x ... (for a total of 64 times) = 6425410513917149104353439302702059376776707755366660164798074133367507313730350938274282327014132108011097996836551750844416
Therefore, 86 to the power of 64 is 6425410513917149104353439302702059376776707755366660164798074133367507313730350938274282327014132108011097996836551750844416.