Question

For every natural number 'n', 6n always ends with the digit​

Answer 1

C. 6

Try it yourself

6²= 36

6³= 216

And so on

Answer 2

Answer:

with ending digit 0 it must have factors( 2,* 5) but its has factor( 2*3) so it can never end with digit 0;

and according to fundamental theorem of arithmetic every prime no. has unique prime factors so, it can never end with digit 0