Q: What is a number that has integers at all its square roots?

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All of the integers between 20 and 30 are square roots.

No. A number will have a rational square root, only if both the numerator and denominator of the simplified fraction are squares of integers.

10 is the only square root of 100

Like every other number 1600 has only two square roots, plus and minus 40.

6220 is not a square number. The nearest number that is a square number would be 6241. A square number is when all the integers are written down, it could represent a square eg. 4 x 4 meaning that 16 is a square number.

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All integers are square roots. 3 is the square root of 9.

All of the integers between 20 and 30 are square roots.

No. A number will have a rational square root, only if both the numerator and denominator of the simplified fraction are squares of integers.

The square root of any positive square number is always rational as for example the square root of 36 is 6 which is a rational number.

They are rational because the characteristic of evenness and unevenness is relevant only in the context of integers. And all integers are rational.

A number with a square root is still a number. So the answer is all of them.

10 is the only square root of 100

Like every other number 1600 has only two square roots, plus and minus 40.

6220 is not a square number. The nearest number that is a square number would be 6241. A square number is when all the integers are written down, it could represent a square eg. 4 x 4 meaning that 16 is a square number.

Well, for example, the square root of 4 is 2, which is a rational number. As long as the number which is being square rooted is not a square number itself (i.e. 1, 4, 9, 16 etc.), then it will be irrational. So..... the square roots of 49, 100, 196, for example, are all rational numbers (7, 10 and 14 respectively.) They do not have to be integers. The square of of any rational number automatically has a rational square root eg the square root of 77.41792 is 77.4179 . Rational means expressable as a ratio of integers: 77.4179 is 774179/10000 .

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

Square roots, like sqrt(2), are irrational numbers. This means that they CANNOT be written as a ratio of two integers. All other real numbers can be written a s a ratio of two integers (for example, 5 is 5/1 0.33333... is 1/3 etc. But, sqrt(2) cannot be written as something over something. As a decimal, square roots never end and NEVER repeat.