2002^2002. Last week I took a test and I got this question 20002^2002. The question didn't ask for the result, it ask for the last number of 2002^2002. The options are : A.0 B.2 C.4 D.8. I answered C.4. Am I right or not?

Guest Mar 22, 2015

#1**+5 **

Best Answer

Note the pattern.......

2^1 = 2

2^2 = 4

2^3 = 8

2^4 = 16 and then this pattern of the ending digit starts all over again

So, dividing 2002 by 4, we have 500 + 2/4 ....this tells us that the number will end with the second digit in the pattern, i.e., ..... 4

You are correct !!!!!

CPhill
Mar 22, 2015