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A perfect square.

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Q: A rational number whose square root is a whole number?
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Related questions

What is a rational whose cube root is a whole number?

How about 27 whose cube root is 3 which is a rational whole number.


What is a rational number whose square root is a whole number?

If the square root is a whole number, then the square of the square root, the original number, is also a whole number; all whole numbers can be expressed as themselves over 1, and so are rational numbers. The answer is thus any square number, ie the square of the natural numbers: 1 (1²), 4 (2²), 9 (3²), 16 (4²), etc.


What are rational numbers whose square roots are whole numbers called?

Rational numbers whose square roots are whole numbers are themselves whole numbers. They are called square numbers, e.g. 1, 4, 9, 16, 25 and so on.


What will happen to a whole number when it's multiplied by a fraction that is greater than 1?

The product will be a rational number whose absolute value is bigger than the absolute value of the whole number.The product will be a rational number whose absolute value is bigger than the absolute value of the whole number.The product will be a rational number whose absolute value is bigger than the absolute value of the whole number.The product will be a rational number whose absolute value is bigger than the absolute value of the whole number.


What is a number whose square root is a rational number?

It is another rational number whose numerator and denominator (in the ratio's simplest form) are perfect squares.


What is a rational number whose cubed root is a whole number?

8


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.


What is a rational numbers whose square roots are whole numbers?

They are perfect squares.


A whole number whose square root is also a whole number is called what?

A perfect square.


What is a rational number whose cube root is a whole number?

27 is a perfect cube.


What is a rational number whose cube root is a whole number called?

a perfect cube


What rational number whose cubed root is a whole number?

-27 is one possible answer.


Is -3 a real number rational irrational integer whole or a natural number?

It is a real rational negative integer number whose value is -3


What is a number called whose square root is a whole number?

A perfect square.


What is the name of a rational number whose cube root is a whole number?

That's a perfect cube.


What starts with a P that means a rational number whose cube root is a whole number?

The answer is: perfect cube


What is a number whose positive square root is a whole number called?

its called a "perfect square"


What is A number whose square roots are integers or quotients of integers?

They are squares of rational numbers. there is no particular name for them.


Is the square root of a15 a rational number?

No, because 15 is not a perfect square. The closest perfect square is 16, whose square root is 4.


If you take the square root of an irrational number.Will it be irrational too?

Certainly. Otherwise, there would be a rational number whose square was an irrational number; that is not possible. To show this, let p/q be any rational number, where p and q are integers. Then, the square of p/q is (p^2)/(q^2). Since p^2 and q^2 must both be integers, their quotient is, by definition, a rational number. Thus, the square of every rational number is itself rational.


Is the square root over 3 rational number?

It depends on the number whose square root is being taken.sqrt(4)/3 is rational but sqrt(5)/3 is not.


Is the square root of 2 imaginary?

No, but it is irrational, because there is no rational number whose square is two. Imaginary numbers are the square roots of negative numbers.


What does it mean for a number to be a perfect square?

A perfect square is a number whose square root is a whole number, such as 1, 4, 9, 16, 25, etc.


Are there two irrational number whose sum and production are rational?

Yes, for example: square root of 2, and the negative of the square root of 2.


What is a rational number whose cube root is a whole numbers?

It could be 27 because 3*3*3 = 27