Question

12^{n} cannot end with the digit 0,5 and n∈ N

Answer 1

Factors of 12 are 2*2*3
For having 0 or 5 at end , any number should have 5 as its factor
But as 12 doesn't have 5 as its factor
12^{n}cannot end with 0 or 5
HOPE IT HELPS!!!!!!!!!!!!!!