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# What does square root of a number mean?

Updated: 12/21/2022

Wiki User

12y ago

The square root of a number is a number which, when multiplied by itself, gives the original number.

So, 9 has a square root which is 3 because 3*3 = 9

Wiki User

12y ago

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Q: What does square root of a number mean?
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### Why do you say square number and what does square root mean?

square root is a number that multiplies into its self to get a number. For example:3x3=9

### What is A number those square is 20?

If you mean the square root is 20, the answer is 400. If you mean the square root of 20, the answer is about 4.47.

### Is 1 a perfect square root?

Not sure what you mean by "perfect square root".A "perfect square" is the square of a whole number; if that's what you mean, yes, it's the square of the number 1.

### What does it mean to find the square root of a number?

It means you are finding what number multiplied by itself will give you the number you are finding the square root of.

### What does x value in square root mean?

It is the number whose square root you need to obtain.

### What does it mean if there are two square root symbols over a number?

Take the square root of the square root of the number (that is the fourth root of the number), for example: &radic;&radic;16 = &radic;(&radic;16) = &radic;4 = 2 24 = 16 &rArr; 2 is the fourth root of 16.

### What does square root key mean?

As an example, the square root of 49 is 7. It's this because the square root of a number is another number multiplied by itself(7X7=49).

### What is the Rational number for the square root of 6?

The square root of six is irrational. Do you mean a rational approximation?

### Can numbers that are not square have square roots?

Yes and no. It depends on your definition of square root. By the actual one, yes. All non-negative numbers have a square root. That square root might be irrational but it has a square root, nonetheless. 10 isn't a square number because there's no integer that can be squared to make ten but 10 definitely has a square root: 3.16227766....... If by square root you mean an integer square root, then no. If a number has an integer as its square root then you could square that integer to get the number, making it a square number.

### Is the square root of 100 an irrational or rational number?

It is neither but if you mean the square root of 100 then it is 10 which is a rational number

### What does the mathematical term perfect square mean?

The mathematical term 'perfect square' means that a number, which has a rational number as its square root. 25 is a perfect square, because its square root is 5, a rational number.

### What does a non-square root mean?

It doesn't mean anything. If you've actually seen the term used by a mathematician (which I doubt), you might be able to determine from context what it means, but without that context it's pointless to even try."Square root" has a specific meaning, but "non-square root" could mean that the number in question is not a square root (ludicrous... every number is the square root of something), or that it's not the square root of a given number (an almost equally useless concept), or that it's a root of some kind but not a square root (just tell us what kind of root it is. Cube? Fourth?).