Question

Find the units digit of the cube root of the following numbers:​
​(ii) $13824$

Answer 1

Step: Find the unit digit of cube root

Unit digit of $13824$ is $4$ .​
We know that $4$ is the only digit that when multiplied by itself three times, we get $4$ at units place in the result i.e., $4\times 4\times 4=64$ (Unit digit $=4$).​

Hence, the unit digit of the cube root of $13824$ is $4$.​