Question

Find the units digit of the cube root of the following numbers:​
​(iii) $571787$

Answer 1

Step: Find the unit digit of cube root

Unit digit of $571787$ is $7$.​
We know that $3$ is the only digit that when multiplied by itself three times, we get $7$ at the units place in the result i.e., $3\times 3\times 3=27$ (Unit digit $=7$).​

Hence, the unit digit of the cube root of $571787$ is $3$.​