Square Root 1 to 20

The list of square roots of all numbers from 1 to 20 is called Square Root 1 to 20. Both positive and negative values can be found in square roots. From 1 to 20, the positive values of square roots vary from 1 to 4.47214.

The numbers 1, 4, 9, and 16 are perfect squares in square roots 1 to 20, but the remaining numbers are non-perfect squares, meaning their square root will be illogical. In radical form, the square root of 1 to 20 is written as x, while in exponential form, it is written as  (x)½.

Square Roots 1 to 20:

  • In radical form: √x
  • In exponential form: (x)½
  • Largest Square Root: √20 = 4.4721

Where x is any number between 1 to 20.

Square Root from 1 to 20

Learning the square roots of 1 to 20 can assist you in swiftly simplifying time-consuming lengthy equations. In the table below, the values of square roots 1 to 20 are presented to three decimal places.

Square Root from 1 to 20 Rounded to 3 Decimal Places
√1 = 1√2 = 1.414
√3 = 1.732√4 = 2
√5 = 2.236√6 = 2.449
√7 = 2.646√8 = 2.828
√9 = 3√10 = 3.162
√11 = 3.317√12 = 3.464
√13 = 3.606√14 = 3.742
√15 = 3.873√16 = 4
√17 = 4.123√18 = 4.243
√19 = 4.359√20 = 4.472

Square Root 1 to 20 for Perfect Squares

The table below shows the values of square roots from 1 to 20 for perfect squares.

√1 = 1√4 = 2
√9 = 3√16 = 4

Square Root 1 to 20 for Non-Perfect Squares

Below are the values of 1 to 20 square roots for non-perfect squares.

√2 = 1.414√3 = 1.732
√5 = 2.236√6 = 2.449
√7 = 2.646√8 = 2.828
√10 = 3.162√11 = 3.317
√12 = 3.464√13 = 3.606
√14 = 3.742√15 = 3.873
√17 = 4.123√18 = 4.243
√19 = 4.359√20 = 4.472

How to Calculate Square Root from 1 to 20?

Method 1: Prime Factorization

Example: Value of √4

  • Prime factorization of 4 is 2 × 2
  • Pairing prime factors: 2

Therefore, the value of √4 = 2

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