Question

What will be the unit digit of the cube of 712 ?

Answer 1

To find unit digit of cube of 712,

First we need to find cube of 712.

Find cube of 712:-

${712}^{3} = 712 \times 712 \times 712$

= 360944128

Therefore, unit digit of cube of 712 is 8.

Shortcut:-

Here, if we need to find cube of 712,it will take much time.

So to solve this easily, follow the given rules:-

712³ = 712 × 712 × 712

Multiply only unit digit of 712.

→ 2 × 2 × 2 = 8

Therefore, unit digit of cube of 712 is 8.