Tough and Tricky questions: Remainders.
1^1 + 2^2 + 3^3 + ... + 5^5 is divided by 5. What is the remainder?  Select the correct option.
A) 0
B) 1
C) 2
D) 3
E) 4
a number is divisible by 5, if its last digit is divisible by 5   let's look into the sum of last digits of each term of the given expression   1^1=1   2^2=4   3^3=7   4^4=6   5^5=5   adding all these numbers we get23 which gives a remainder of 3 when divided by 5. so answer must be 3.   bunuel, can you please confirm the answer of this question.   Yes, the OA is C. Clicked the wrong button when posting. Edited. Thank you.   3
<result>D</result>
Tough and Tricky questions: Remainders.
1^1 + 2^2 + 3^3 + ... + 5^5 is divided by 5. What is the remainder?