Question

check whether 12n ends with the digit 0 for any natural number.

Answer 1

it cannot end with zero.
because,
here ,the number is 12^n.where n is called natural number.
Now , if 12^n is to end with zero,it should have 2 and also 5 in its prime factors to end with zero.it needs at least a single multiple of 5 or any number  in its prime factors.so 12^n cannot end with zero for any natural number

Answer 2

Answer:

let us assume that 12n can end with digit 0 it mist be a factor of 5

12n = (4*3)n

FTA

5 is not a factor of 12n

our assumption is wrong

12n cannot end with digit 0