Question

Check whether (15)^n can end with digit 0 for any n€ N.

Answer 1

15^n cant be end with 0 Because to end with 0 the no should have factors 2 and5 but 15 has factors 3 and 5 which are other than 2 or 5

Answer 2

Nooo..... because for dis we want 2 nd 5 bt the factors of 15 will be 3nd 5 which most probably 5 will come at last digit.....

so it may help u !!