Explain simply why (C) is the correct answer to: What is the units digit of the expression 14^716^4?
Options:
(A) 0
(B) 3
(C) 8
(D) 6
(E) 4. Explanation:
I think answer on this one should be C too. Since we know that 14^7>16^4, as Will said one should always check if the number is positive.