Square Root of 15876 = 126

Square Root Calculator

Here is the answer to questions like: Square Root of 15876 = 126 (Step-by-Step Solution) or what is the square root of 15876?

Use the square root calculator below to find the square root of any imaginary or real number. See also in this web page a Square Root Table from 1 to 100 as well as the Babylonian Method or Hero's Method.

15876 Is a Perfect Square

√15876 = 126  because  126² = 126 × 126 = 15876

The Babylonian Method (Interactive)

See below how to calculate the square root of 15876 step-by-step using the Babylonian Method (also known as Hero's Method).

Formula

The square root of a non-negative number a is the value x such that:

x² = a  ⇔  √a = x  (for x ≥ 0)

Every positive number has two square roots: a positive one (the principal root returned by this calculator) and a negative one. For example, √25 = 5 and also -5, since (-5)² = 25.

The square root of a negative number is not a real number — it is an imaginary number written as i√|a|.

What is a square root?

A square root of a number 'a' is a number x such that x² = a — a number whose square is a. For example, 126 is the square root of 15876 because 126² = 126 · 126 = 15876; and -126 is also a square root of 15876 because (-126)² = (-126) · (-126) = 15876.

Nearby Square Roots

Square Root Table 1-100

Square roots from 1 to 100 rounded to the nearest thousandth.

Related Operations

Simplified radical form: Try our Simplify Square Root Calculator to see √15876 in simplest form (e.g. 5√2 instead of 7.0711…).

Inverse operation: Since √15876 = 126, the inverse is squaring: 126² = 15876. See our Squared Calculator.

References

• [1] Babylonian method (Wikipedia)
• [2] Manually calculate the square root of a number with Javascript

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