Question

Write the units digit of cube 31​

Answer 1

1 is your correct answer

Answer 2

31^3 = 29791

In the above result, the units digit is 1.

Hence, the units digit of the cube of 31 is 1.

OR

We know that the cube of the a number will have the same units digit as the number before.

Hence, cube of 31 will have 1 in the units digit.