What is the remainder when 3^86 is divided by 5 ?
Choose the correct choice from the following:
A) 1
B) 2
C) 4
D) 0
E) 3
3^0 = 1   3^1 = 3   3^2 = 9   3^3 = 27   3^4 = ...1   3^5 = ....3   3^6 = ......9   and so on.   86/4 = 21 (with a remainder 2) so the last number is a 9.   so when 3^86 is divided by 5 the remainder is 4, ANS = 4
<result>C</result>
What is the remainder when 3^86 is divided by 5 ?