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:
94 x 94 x 94 x 94 x ... (for a total of 90 times) = 3815107888267588158830499010699770043858931022003594789762684384750117652380946337066557462159542240926794405585593370546024211771853137483744746445084400064599116055164879896576
Therefore, 94 to the power of 90 is 3815107888267588158830499010699770043858931022003594789762684384750117652380946337066557462159542240926794405585593370546024211771853137483744746445084400064599116055164879896576.