# FAQ: What Is The Square Root Of 81?

## What is the square root of 81 simplified?

Explanation: 81 =9⋅9 then the square root of √ 81 =9.

## What is the square root of 81 with solution?

Example Square Roots: The 2nd root of 81, or 81 radical 2, or the square root of 81 is written as 2√ 81 =√ 81 =±9.

## Is the square root of 81 a perfect square?

81 is a perfect square if the square root of 81 equals a whole number. As we have calculated further down on this page, the square root of 81 is a whole number. 81 is a perfect square.

## What is the root square of 10?

List of Perfect Squares

NUMBER SQUARE SQUARE ROOT
8 64 2.828
9 81 3.000
10 100 3.162
11 121 3.317

## What is the root square of 121?

Once again, the square root of 121 is 11.

## What are the factors of the square number 81?

81 and Level 5 81 is a composite number and is 9 squared. 81 = 1 x 81, 3 x 27, or 9 x 9. Factors of 81: 1, 3, 9, 27, 81.

## What is a square root of 625?

Answer: So the square root of 625 by prime factorisation method is 25.

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## What is the perfect square of 81?

Example 1

Integer Perfect square
9 x 9 81
10 x 10 100
11 x 11 121
12 x 12 144

## Is 81 a perfect number?

A: Yes, the number 81 is a perfect square.

## Is 80 a perfect square?

80 is not a perfect square. 80 is a natural number, but since there is no other natural number that can be squared to result in the number 80, it is NOT a perfect square root.

## What is a square root of 69?

Square Root Table 1-100

number square square root
69 4,761 8.307
70 4,900 8.367
71 5,041 8.426
72 5,184 8.485 