Math Tutor Explains: What is 90 to the Power of 77?

A math tutor would explain that to solve for 90 to the power of 77, we must first understand the structure. The number 90 is called the base, and the number 77 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: 90 to the Power of 77 is equal to 2996906728784528480690076337858742817910432113156756087902993682944160816900000000000000000000000000000000000000000000000000000000000000000000000000000

Methods

Step-by-step from math tutor: finding 90 to the power of 77

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:

907790^{77}

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

90 x 90 x 90 x 90 x ... (for a total of 77 times) = 2996906728784528480690076337858742817910432113156756087902993682944160816900000000000000000000000000000000000000000000000000000000000000000000000000000

Therefore, 90 to the power of 77 is 2996906728784528480690076337858742817910432113156756087902993682944160816900000000000000000000000000000000000000000000000000000000000000000000000000000.

Math Tutor Suggests: Try related exponent problems

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