Math Tutor Explains: What is 99 to the Power of 72?

A math tutor would explain that to solve for 99 to the power of 72, we must first understand the structure. The number 99 is called the base, and the number 72 is called the exponent. In short, the base must be multiplied by itself the number of times as the exponent. Let’s look at this problem in more detail.

Math Tutor's Solution: 99 to the Power of 72 is equal to 484991370274163135391626238633135363670332921761431865272435420626479226423410046814852063249106427670526873558093511292243488578695379385552801

Methods

Step-by-step from math tutor: finding 99 to the power of 72

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

242^4
. To solve this, we need to multiply the base, 2 by itself, 4 times -
2⋅2⋅2⋅22\cdot2\cdot2\cdot2
= 16. So
24=162^4 = 16
.

So re-applying these steps to our particular problem, we first convert our word problem to a base-exponent form of:

997299^{72}

To simplify this, all that is needed is to multiply it out:

99 x 99 x 99 x 99 x ... (for a total of 72 times) = 484991370274163135391626238633135363670332921761431865272435420626479226423410046814852063249106427670526873558093511292243488578695379385552801

Therefore, 99 to the power of 72 is 484991370274163135391626238633135363670332921761431865272435420626479226423410046814852063249106427670526873558093511292243488578695379385552801.

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