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    Bluesmoods's Avatar
    Bluesmoods Posts: 1, Reputation: 1
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    Oct 27, 2013, 05:58 PM
    The sum of the first n counting numbers is 2013 but wait that is impossible one of th
    the sum of the first n counting numbers is 2013 but wait that is impossible one of those counting numbers must not have been included in the sum. Which one?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    Oct 28, 2013, 05:43 AM
    Bluesmoods: do you know the formula for the sum of the first N counting numbers? If you apply it you can get an estimate for N pretty easily.
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