Check whether 6^n can end with the digit 0 for any natural number n

Check whether 6^n can end with the digit 0 for any natural number n No, 6^n cannot end with the digit 0, for any natural number. To end with the digit 0 the prime factorisation of the number should contain 2 and 5 as its prime factors but prime factorisation of 6^n = ( 2 … Read more