Question

Find the unit of the cube root of the following numbers:

(i) 226981 

(ii) 13824 

(iii) 571787 

(iv) 175616

Answer 1

(i) 226981 

Let’s consider the number 226981. 

Unit digit = 1 

The unit digit of the cube root of 226981 = 1 

(ii) 13824 

Let’s consider the number 13824. 

Unit digit = 4 

The unit digit of the cube root of 13824 = 4 

(iii) 571787 

Let’s consider the number 571787. 

Unit digit = 7 

The unit digit of the cube root of 571787 = 3 

(iv) 175616 

Let’s consider the number 175616. 

Unit digit = 6 

The unit digit of the cube root of 175616 = 6