What is the remainder when 3^33 is divided by 5?
Pick: A) 0 B) 1 C) 2 D) 3 E) 4
The units digit of powers of 3 follow a repeating cycle of four: {3, 9, 7, 1}   33 has the form 4k+1, so the units digit of 3^33 is 3.   The remainder when dividing by 5 is 3.   The answer is 3.
<result>D</result>
What is the remainder when 3^33 is divided by 5?