SOLUTION: What is the last digit of 2^2005 ? (a) 0 (b) 2 (c) 4 (d) 5 (e) 6

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Question 252535: What is the last digit of 2^2005 ?
(a) 0 (b) 2 (c) 4 (d) 5 (e) 6
Answer by edjones(8007) About Me  (Show Source):
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There is a repetition of four numbers 2, 4, 8, and 6
2005/ 4=501.25
1/4=.25 the same remainder as 501.25
2^1=2 so the last digit is 2.
.
Ed