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They are all whole numbers (no decimal parts).
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Are all square roots are irrational numbers?
No. The square roots of perfect squares are rational.
What is a number that has integers at all its square roots?
It is a perfect square.
Why are square roots and perfect squares important?
All numbers are important.
What do the perfect squares have in common?
All their roots are whole numbers.
Are all square roots rational numbers?
No. Lots of square roots are not rational. Only the square roots of perfect square numbers are rational. So for example, the square root of 2 is not rational and the square root of 4 is rational.
Is the square root of 13 irrational or rational?
The square root of 13 is irrational. All square roots of whole numbers are irrational unless the number is a perfect square.
Do all square roots of perfect squares are rational numbers?
Yes. Not only that, they are counting numbers.
What number has a square root that is a factor for the product 40?
All numbers have square roots. You may have meant which factors of 40 are perfect squares. That's 1 and 4.
Are all square roots of even numbers rational?
No. The square roots 8 are irrational, as are the square roots of most even numbers.
What do 1 4 and 9 have in common?
They all have square roots. Square root of 1 is 1 Square root of 4 is 2 Square root of 9 is 3
Is the square root of 97 rational or irrational?
The square root of ANY positive integer is either a whole number, or an irrational number. Only the perfect squares have whole number square roots; all the rest are irrational. 97 is not a perfect square therefore √97 is irrational.
Are irrational numbers used to find square roots?
All prime numbers have irrational number square roots, so if you try to find the square root of a non-perfect square number use them to simplify it. For example, ±√125 = ±√25*5 = ±5√5 (when you want to show both the square roots) √72 = √36*2 = 6√2 √-27 = √-9*3 = 3i√3
