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# Is root 2 a rational number?

Updated: 10/19/2022

Pugrocker03

Lvl 1
13y ago

The square root of 2 is irrational. In general, the square root of a positive integer is either an integer (if you take the square root of a perfect square), or it is irrational.

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Q: Is root 2 a rational number?
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### Is the square root of 4 irrational or rational?

It is rational. The root of a perfect square, such as 4, is rational; the root of any positive integer that is not a perfect square is an irrational number.

### Is square root of 4 rational?

The square root of 4 is 2. 2 is a rational number so they square root of 4 is rational.

### Is the square root of 4 a rational or irrational number?

The square root of 4 is 2 which is a rational number

### Is the square of 2 rational number?

Yes, the square of any rational number is also a rational number.The square root of 2 is not a rational number.

### A short note on square root of rational number?

Square root of a rational number may either be rational or irrational. For example 1/4 is a rational number whose square root is 1/2. Similarly, 4 is 4/1 which is rational and the square root is 2 which of course is also rational. However, 1/2 and 2 are rational, but their square roots are irrational. We can say the square root of a rational number is always a real number. We can also say the rational numbers whose square roots are also rational are perfect squares or fractions involving perfect squares.

### Is the square root 2 a rational number?

No, they are not.

### Is root 2 a rational?

no it is an irrational number

### Is the square root of 4 rational?

Yes because the square root of 4 is 2 which is a rational number

### Is the square root of 84 a rational number?

No because it is 2 times the square root of 21 which is an irrational numberThe square root of 84 is not a rational number

### Is a square root of 2 rational or irrational?

The square root of 2 is an irrational number

### How can you multiply 2 irrational number to get a rational number?

The square root of 2, for example, is irrational.sqrt(2)*sqrt(2) = 2 which is rational.

### How do you find rational number between root of 2 and root of 3?

Root 2 is appx. 1.414 and root 3 is appx. 1.732. There are many rational number between that. For instance: 1.5, 1.6, etc.