Is root 6 an irrational number? Mathematically, a number that is stood for in p/q form where p and q both space integers, and q is not equal come 0, is ad to as a rational number whereas the number that can not be stood for in p/q form are called irrational numbers. A number whose decimal expansion keeps expanding after the decimal point is additionally categorized together an irrational number. Now let united state take a look at the in-depth discussion and also prove the root 6 is irrational. 


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Prove the Root 6 is Irrational Number
2.Prove the Root 6 is Irrational by Contradiction Method
3.Prove the Root 6 is Irrational by Long division Method
4.Solved Examples
5.FAQs top top Is root 6 an Irrational?

Problem statement: Prove that root 6 is one irrational numberProof: When us calculate the worth of √6, us get √6 = 2.449489742783178... The is a decimal number the does no terminate and terms room not repeating themselves after the decimal point. Thus, the value obtained for the root of 6 satisfies the problem of being a non-terminating and non-repeating decimal number that keeps expanding further after ~ the decimal allude which makes √6 an irrational number. Hence, √6 is an irrational number. 

Root 6 is most typically used come term square root of 6. We stand for the source of a number "n" as √n. Thus, the root of a number is identified as the number the on squaring gives the initial number. For example, squaring √6, we gain the number 6. In order come prove the root 6 is one irrational number, we have the right to use two different methods. Castle are: 

Contradiction method

Let"s relocate further and discuss both the approaches in detail.

Given: Number √6To Prove: root 6 is irrationalProof: Let us assume that square source 6 is rational. Together we know a reasonable number deserve to be express in p/q form, thus, we write, √6 = p/q, wherein p, q space the integers, and also q is no equal to 0. The integers p and also q room coprime number thus, HCF (p,q) = 1.

√6 = p/q⇒ p = √6 q ------- (1)On squaring both sides we get, ⇒ p2 = 6 q2 ⇒ p2/6 = q2 ------- (2)If k was a prime number and k divides a2 evenly, then k also divides "a" evenly, whereby a is any positive integer.Hence the equation (2) shows 6 is a factor of p2 which implies that 6 is a aspect of p.We deserve to write ns = 6b (where b is a constant)

Substituting ns = 6b in (2), we get (6b)2/6 = q2⇒ 36b2/6 = q2 ⇒ 6b2  = q2 ⇒ b2  = q2/6 ------- (3)

Hence, similarly, equation (3) mirrors that 6 is a aspect of q We have the right to see from equations (2) and also (3) that 6 is a factor of p and 6 is a aspect of q dong which contradicts our assumption that p and q space coprime numbers. Because of this we have the right to conclude that our assumption of acquisition root 6 together a reasonable number to be wrong.Thus, the square root of 6 is irrational.

We can achieve the value of the source 6 by the long department method using the adhering to steps:

Step 1: first the number 6 is created as 6.00 00 00 and the digits space paired beginning from one"s place.Step 2: now we find a number whose square results in a number equal to or much less than 6. Step 3: The quotient is 2 and also the remainder obtained is 2.Step 4: bring down the first pair of zeros. Now, 200 becomes the brand-new dividend.Step 5: twin the quotient obtained. It is 2 and now the new divisor will certainly be 2n which when multiplied through n should acquire the product less 보다 or equal to 200.Step 6: We recognize 44 × 4 = 176. On subtracting this from 200 we get the remainder as 24. Carry down the following pair of zeros. 2400 i do not care the brand-new dividend.Step 7: add the unit ar digit in the divisor, we gain 44+4. It is 48 and currently let us have our new divisor, 48n.Step 8: Find a number "n" such that 48n × n gives the product less than or same to 2400. We determine 484 × 4 = 1936. On individually this native 2400 the remainder derived is 464. Bring down the following pair that zeros. 46400 i do not care the brand-new dividend. Step 9: include the unit ar digit in the divisor, we acquire 484+4. That is 488 and now let us have our new divisor, 488n. Find a number "n" such that 488n × n gives the product less 보다 or same to 46400. We determine 4889 × 9 = 44001. On individually this native 46400 the remainder obtained is 2399. Step 10: The long division is ongoing until the required number of digits ~ the decimal is obtained.


As we deserve to see the value of source 6 does no terminate after 3 decimal places. It deserve to still be prolonged further. Hence, this makes √6 an irrational number.

☛ likewise Check:

Example 1: Andy wants to prove that √24 is an irrational number. Have the right to you usage the reality that the square root of 6 is irrational to prove it?Solution: As us know, 24 can it is in expressed together 24 = 2 × 2 × 2 × 3. 

Taking square source on both sides us get, √24 = √(2 × 2 × 2 × 3)⇒ √24 = 2√6 = 2 × 2.449489742783178 = 4.898979485566356As we acquire a decimal number that is both non-repeating and also non-terminating, for this reason √24 is an irrational number.


Example 2: Jenny stated to her friend Lisa that the square root of 6 is an irrational number. She climate asked she to find √6 using a number line. Deserve to you assist her?Solution: 


Following space the steps to construct the root 6 on the number line.

Step 1: an initial draw OA = 1 unit ~ above the number line, and also by drawing a perpendicular line abdominal from A, where AB = 1 unit, sign up with OB.Step 3: Draw a perpendicular line BC native B, where CB = 2 unit, join OC.Step 4: Now applying the Pythagorean theorem, we gain OC = √(OB2 + BC2) = √((√2)2 + 22) = √6 units.Step 5: now make one arc meeting on the number line considering OC as the radius which represents √6 units.Step 6: Thus, OC and also OD measure √6 units respectively.

Thus, √6 is represented on the number line.


Indulging in rote learning, you are likely to forget concepts. With, friend will learn visually and also be surprised by the outcomes.

How perform You Prove the Root 6 is Irrational?

We deserve to prove the root 6 is an irrational number by various methods. Us cannot express root 6 in p/q kind where p, q room integers and also q is no equal come 0, which tells united state that that is an irrational number. The worth of the square root of 6 is √6 = 2.449489742783178... And also it does not terminate and terms perform not repeat together well, after the decimal however only expand further, i beg your pardon is a home of one irrational number. We can additionally prove the root 6 is irrational, one by using the an approach of contradiction and also the other by utilizing the method of long division. 

Is 2 times the square source of 6 Irrational?

Yes, 2 time the square root of 6 is an irrational number. 2 time the square source 6 is created as 2 × √6 = 2 × 2.449489742783178 = 4.898979485566356... Here, we get a an outcome that is a decimal number the does not terminate and also whose state do not repeat as well, hence it deserve to be claimed that it is an irrational number. Indigenous this, it deserve to be viewed that any number multiplied with root 6 will be irrational. 

How to Prove source 6 is Irrational by Contradiction?

We have the right to prove the root 6 is irrational making use of contradiction we use the adhering to steps:

Step 1: it is presume that √6 is rational.Step 2: Now, we write √6 = p/qStep 3: ~ above squaring both sides, the acquired equation is simplified and a continuous value is substituted.Step 4: Hence, that is found that 6 is a element of the numerator and also the denominator i m sorry contradicts the building of a rational number.

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hence, root 6 is one irrational number is proved.

Is 3 time the Square root of 6 Irrational?

How to Prove that 1 by root 6 is irrational?

When us rationalize 1/√6, we get (1/√6) × (√6/√6) = √6/6. It is well-known to us that √6 is an irrational number, and dividing one irrational number through a reasonable number likewise gives one irrational number, this help us conclude that 1/√6 is irrational.