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Square root of 5

​If you are wondering what the square root of 5 is, it is approximately 2.2360679775. The square root of a number (5 in this case) is a value (2.2360679775 in this case) that, when multiplied by itself, equals the original number (5). Mathematically, the square root of 5 can be expressed in either radical or exponent form:
 
-Radical form of the square root of 5: √5
-Exponent form of the square root of 5: 5^(1/2) or 5^(0.5)
 
The radical sign or radix is the term used to refer to the symbol √. The number being calculated for its square root is called the radicand, which is the number under the radical sign (radix) in this case.

Calculator for Square Root of 5

​If you want to calculate the square root of a number, including the value of the square root of 5, you can use a square root calculator.
Square Root Calculator

Square Root Calculator

Calculation Guide of Square root of 5

​In the following sections we explain how to calculate the square root of 5. We will address frequently asked questions, such as "Is the square root of 5 a rational or irrational number?" and “is 5 a perfect square?” Our primary focus of discussion will be on the square root of 5.
 
You will find all the information you need on the square root of 5 calculations below.

What is the square root of 5?

​The square root of 5 is a number which multiplied by itself equals 5. Therefore, the square root of 5 is approximately 2.2360679775 and we write it √5 = 2.2360679775 because 2.2360679775 x 2.2360679775 = 5.
 
Therefore,
 
ANSWER: Square root of 5 = √5 = 2.2360679775
 
Is 5 a Perfect Square?
 
A number is considered a perfect square if it is a product of squaring a whole number (called integer). 0, 1, 2, 3, 4, 7, 8, and 9 are all whole numbers (same as integers). Numbers such as -5, 7.025, or 5 ½ are not whole numbers. Remember squaring is when a number is multiplied by itself. For example, 81 is a perfect square because it is a product of 92 which is the same as 9×9. Notice 9 is a whole number (integer).
 
In our example the square root of 5 is approximately 2.2360679775. Since 2.2360679775 is not a whole number, therefore 5 is not a perfect square.
 
ANSWER: 5 is not a perfect square.
Square root of 5

Is the square root of 5 rational or irrational number?

​A number is rational when it can be made by dividing a whole number by a whole number. A whole number which is also called an integer does not have a fractional part itself. Simply said, a number is rational if it can be written as a fraction.
 
A quick method to determine if 5 is a perfect square. All perfect squares have rational square roots. The square roots of numbers that are not a perfect square are all irrational numbers. Since we know that 5 is not a perfect square, therefore the square root of 5 is an irrational number.
 
ANSWER: The square root of 5 is an irrational number.

Principal square root of 5

Every positive number has two square roots. One of the square roots is positive and another one is negative. For example, the square roots of 5 are -2.2360679775 (negative) and +2.2360679775 (positive) because (-2.2360679775)^2=(+2.2360679775)^2=5. The positive square root is denoted as “the principal square root”. Typically, when we are calculating “the square root of a number” we mean the principal square root. In our case, it is positive 2.2360679775 or +2.2360679775 which is written as √5=2.2360679775. As you may know, if there is no minus (-) sign before a number it is a positive number.
 
Therefore, the principal square root of 5 is √5=2.2360679775.
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  • Z Table
  • How To Use Z-Score Table
  • Z Score Calculator
  • Z Score Probability Calculator
  • Contact Us
    • Advertise Here
  • Calculate Z-score
  • Z Score Formula
  • History on Normal Distirbution
  • Z Score Table Blog
  • Other Statistical Tables
    • T Value Table
    • Chi-Square Table
    • F Distribution Table
  • Z Score Chart Basics
  • Standard Deviation Calculator
  • Mean, Median and Mode Calculator
  • Percentage Increase Calculator
  • Factor Calculator
  • Rounding Calculator
    • Round 15 to the nearest ten
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    • Round 35 to the nearest ten
    • Round 5 to the nearest ten
    • Round 3 to the Nearest Ten
  • Random Number Generator
  • Root Calculator
  • Square Root Calculator
    • Square root of 2
    • Square root of 8
    • Square root of 5
    • Square root of 4
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    • Square root of 64
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    • Square root of 25
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  • Decimal to Fraction Calculator
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