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Find the sum of all the even factors of 1000

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Find the sum of all the even factors of 1000.
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2 Answers

You fell for the trap. I never asked for "sum of positive even factors"! I asked for "sum of even factors". Hence the negative and positive even factors will cancel out and the correct answer is 0.
answered Jul 18, 2016 by (-1 points)
(1+2+4+8)(1+5+25+125)-(156)= 2184?
answered Jul 18, 2016 by Beginner (3 points)
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