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There are many facets to the number 9 and each one is unique and special in its own way. Here are just a few of the many facets of 9 that make it such a special number.

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## What is the square of 9

The square of 9 is 81. This number has many interesting properties that make it worth studying. For example, it is the largest perfect square that is also a sum of consecutive squares. It is also a Fibonacci number, and a happy number.

All of these properties make the square of 9 a fascinating number to explore. If you’re interested in learning more about it, there are many resources available online and in mathematics books.

## What are the factors of 9

There are many factors of 9, but the most important ones are that 9 is a multiple of 3, and it is also the square root of 81. These two factors make 9 a very special number.

3 is a special number because it is the smallest number that is a multiple of 3. This means that when you divide 9 by 3, you will always get an integer answer. 3 is also the only number that is both a multiple of 3 and the square root of 9. This makes 9 a very powerful number.

9 is also the square root of 81. This means that 9 can be used to find the square roots of other numbers. For example, if you want to find the square root of 64, you can just divide 9 into 64. This will give you the answer 8.

So, as you can see, there are many important factors of 9. These factors make 9 a very special and powerful number.

## What is the square root of 9

The square root of 9 is 3. This means that if you were to take a 9 inch square and cut it into 3 equal pieces, each piece would be 3 inches long. The square root of 9 is also an irrational number, which means that it cannot be expressed as a rational number (a number that can be expressed as a fraction).

## What is 9 squared

9 squared is 81.

## Is 9 a perfect square

There are a few different types of perfect squares, but in general, a perfect square is a number that can be expressed as the product of two equal integers. 9 is a perfect square because it can be expressed as 3 * 3.

Perfect squares are usually used in mathematical problems because they are easy to work with. For example, if you were trying to find the area of a square, you could just multiply the length of one side by itself to get the answer. This would be much harder to do if the square was not a perfect square.

## What are the divisors of 9

There are many divisors of 9, but the most common ones are 1, 3, and 9. These numbers all divide evenly into 9. There are also some other divisors of 9, such as 2, 4, 6, and 8, but these numbers are not as common.

## What is the sum of the squares of 9

There is no one answer to this question as it depends on how you interpret it. If you take the question literally, then the answer is simply 81 (9 squared). However, if you view it as a mathematical challenge, then there are a few different ways to approach it. For example, you could use the algebraic formula for finding the sum of squares (n^2) and plug in 9 to get 81. Or, you could break down 9 into its composite numbers (3 and 6) and square each of those separately before adding them together to get 45. Ultimately, it all comes down to how you choose to look at the question.

## Is the square of 9 a rational number

The square of 9 is a rational number because it can be written as a fraction. The square of 9 is 3/3, which is a rational number.

## What is the reciprocal of 9

The reciprocal of 9 is 1/9.

## What is the cube of 9

The cube of 9 is 81.