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Q: Is radical 64 a rational number?

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64 is a rational number and it is also a square number

It is a root of a number where that root cannot be made into a rational number. For example, the cuberoot(27/64) is 3/4 and so is not a radical but cuberoot(32/64) = cuberoot(1/2) = 3√(1/2) cannot be simplified or rationalised further.

No, it is not.

No, it is not.

No, they are not.

The square root of 64 is 8 which is a rational number

It is a rational number because the square root of 64 is 8 which is a rational number

Yes, they are.

Yes, they are.

No. Radical(1.21) = 1.1, for example, is rational.

Yes

yes

.95 is a rational number or square root of 121 a rational number

Sqrt(25) is -5 or +5, both of which are rational.

If the number inside the radical is a perfect square or a ratio of perfect squares.

The square root of 4 is 2 which is a rational number and also a prime number

n

It is a rational number - as are ALL perfect squares.

its the same as itself. since there is no radical part

The square root of 64 is 8 which is a rational number

Yes, it is.

Even number Rational number Composite number As a fraction: 64/1 As a decimal: 64.0 82 = 64 26 = 64

15.556 is a rational number, so there is no sensible radical form.

The square of a negative number is always positive. The square of -8 = 64, a rational number

rational