How to find cube root of any number

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cube root is symbolized by 3√. Some examples are 3√8=2,  3√1=1,  3√216=6,   3√343=7 .In this article best cube root finding trick provided for you.

For this trick you need to know

cube of 1 to ten (only thing you need to know)

1 to 10 cube table provided bellow

13 1
23 8
33 27
43 64
53 125
63 216
73 343
83 512
93 729
103 1000

TRICK:-

Taking example of   3√1728

It is three step process

STEP 1:-

First consider last digit (8) and check which numbers cube last digit is 8.

We got Last digit 2 .

_2

STEP 2:-

Except last 3 numbers (728) take other numbers present

3√1728

Here only 1 present

Check 1 is which number cube

13 =1

STEP 3:-

Combine  1st and 2nd step we get 12

3√1728=12

 
  Some related topics:-
 Find cube of any number

Find Square of any number

Find Square root of any number    

Taking another example it will clear to you:-

3√12167=

STEP 1:-

First consider last digit (7) and check which numbers cube last digit is 7.

We got Last digit 3 .

_3

STEP 2:-

Except last 3 numbers (167) take other numbers present

3√12467

Here only 12 is present

12 is not a perfect cube number

We take lesser number cube

Like :-33=27 is grater than 12 and 23 =8 is lesser than 12

We take 2

STEP 3:-

Combine 1st and 2nd step we get 23

3√12167=23

Another example:-

3√97336=

STEP 1:-

First consider last digit (6) and check which numbers cube last digit is 6.

We get Last digit 6.

_6

STEP 2:-

Except last 3 numbers (336) take another numbers present

3√97336

Here only 97 is present

97 is not a perfect cube number

We take lesser number cube

Like :- 53=125 is greater than 97, 43 =64 is lesser than 97

We take 4

STEP 3:-

Combine 1st and 2nd step we get 46

3√97336=46

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