Question

what is the unit digit of 7^2012​

Answer 1

Answer:

The unit digit of 7^2012=1

Step-by-step explanation:

7^0=1

7^1=7

7^2=49

7^3=343

7^4=2401

7^5=16807

As there is a pattern followed that repeats every 4 times. Now by  dividing 2021 by 4, we get the remainder as 0. As the remainder is 0, the unit digit of 7^2021 is same as 7^0 which is equal to 1