Question

Find the units digit of the cube root of 175616.

• A. 5
• B. 3
• C. 6
• D. 7

Answer 1

The correct option is C 6

The given number is 175616.
Units digit of the given number is 6.

$\begin{array}{cc}\text{Units digit of}& \text{Units digit of}\\ \text{a number}& \text{of the cube}\\ 1& 1\\ 2& 8\\ 3& 7\\ 4& 4\\ 5& 5\\ 6& 6\\ 7& 3\\ 8& 2\\ 9& 9\end{array}$

From the table, we can see that if the cube number ends with 6, the cube root also ends with 6.

So, units digit of cube root of 175616 is 6.