What is the square root of 691

The short answer is \( \sqrt{ 691 } = 26.28687885619 \).

If that's all you're looking for, thanks for coming by. But if you're interested in the hows and whys behind square roots, continue reading and we'll tell you all about the square root of 691.

691 is not a perfect square

Let's look at some math

$$ \LARGE \sqrt{ 691 } = 26.28687885619 $$

Note that \(26.28687885619\) is not a whole number, therefore 691 is not a perfect square.

The next perfect square greater than 691 is 729. The previous perfect square less than 691 is 676.

Square root of 691 as an exponent

Any square root can be converted to a number with a fractional exponent. In the case of 691 the following two values are equal.

$$ \LARGE \sqrt{ 691 } = 691^{^1/_2} $$

Square root of 691 as a fraction

Since 691 is not a perfect square, sometimes we might want to get a fractional estimate of the square root value. In the case of 691 that value is \(\Large 26 \frac{35}{122}\).

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