Square Root of 266 Simplified

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What is the square root of 266 simplified?

Answer

√266 cannot be simplified — its simplest radical form is
√266

√266 is already in simplest form — 266 has no square factor other than 1, so nothing comes out of the radical. As a decimal, √266 ≈ 16.31.

Simplifying √266 Step by Step

1. Prime factorization. — All Prime Factors of 266:

266 = 2 × 7 × 19

2. Pair up equal primes. Each pair is a perfect square and comes out of the root as one factor; a prime without a partner stays under the radical.

Prime factorTimes in 266Comes out of the rootStays under the root
21—2
71—7
191—19

3. Take the pairs out of the root.

√266 = √(2 × 7 × 19)

No prime appears twice, so there is no pair to take out.

√266

4. Check by squaring back.

The only perfect square dividing 266 is 1 = 1², and 1² × 266 = 266

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This calculator writes a square root in simplest radical form: it finds the largest perfect square that divides the number, takes its root out of the radical and leaves the rest under it. For example, it can help you find out what is the square root of 266 simplified? (The answer is: √266). Enter a whole number (e.g. '266') and hit the 'Simplify' button.
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Simplified Square Roots Table

NumberSimplest radical formDecimal value
251√251≈ 15.843
2526√7≈ 15.875
253√253≈ 15.906
254√254≈ 15.937
255√255≈ 15.969
2561616
257√257≈ 16.031
258√258≈ 16.062
259√259≈ 16.093
2602√65≈ 16.125
2613√29≈ 16.155
262√262≈ 16.186
263√263≈ 16.217
2642√66≈ 16.248
265√265≈ 16.279
266√266≈ 16.31
267√267≈ 16.34
2682√67≈ 16.371
269√269≈ 16.401
2703√30≈ 16.432
271√271≈ 16.462
2724√17≈ 16.492
273√273≈ 16.523
274√274≈ 16.553
2755√11≈ 16.583
2762√69≈ 16.613
277√277≈ 16.643
278√278≈ 16.673
2793√31≈ 16.703
2802√70≈ 16.733

FAQ

What is the square root of 266 simplified?

√266 cannot be simplified — its simplest radical form is √266

Is 266 a perfect square?

No. 266 has no perfect square factor other than 1, so √266 cannot be simplified and stays √266.

What is √266 as a decimal?

√266 ≈ 16.31. The decimal never ends and never repeats, so it is always rounded; the exact value is √266.

What is the largest perfect square that divides 266?

Only 1. 266 has no other square factor, so √266 is already in simplest radical form.

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