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# Is the square of 2 rational number?

Updated: 4/28/2022 Wiki User

6y ago

Yes, the square of any rational number is also a rational number.

The square root of 2 is not a rational number. Wiki User

7y ago   Wiki User

6y ago

Yes.   Earn +20 pts
Q: Is the square of 2 rational number?
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Still have questions?  Related questions

### Is every rational number a perfect square?

No. Though every perfect square is a rational number, not every rational number is a perfect square. Example: 2 is a rational number but sqrt(2) is not rational, so 2 is not a perfect square.

### 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 an imperfect square a rational number?

No. The square of 4&acirc;&circ;&scaron;(2) is an imperfect square. But since it is = sqrt(2), it is not rational.

### 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 of 4 a rational or irrational number?

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

### Is 2 squared rational or irrational?

The square of any rational number is also rational.

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

No, they are not.

### Is the square of 250 a rational number?

(250)2 = 62,500 Yes, that's a rational 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.

### 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 a number rational or irrational?

that depends on the number. sqrt(2) is irrational, sqrt(4)=2 is rational