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:
68 x 68 x 68 x 68 x ... (for a total of 78 times) = 86237308009982575506642990259102681249976697547267833923054212297338694939953858963512140251769904134113046847971729864354098417492490530586624
Therefore, 68 to the power of 78 is 86237308009982575506642990259102681249976697547267833923054212297338694939953858963512140251769904134113046847971729864354098417492490530586624.