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Can negative numbers be odd/even?

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anayeri Rising GMAT Star Default Avatar
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Can negative numbers be odd/even? Post Wed Dec 10, 2008 1:52 pm
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    I know this is probably a silly question, but are negative numbers also even and odd?

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    niraj_a GMAT Destroyer! Default Avatar
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    Post Wed Dec 10, 2008 2:12 pm
    i believe so, yes

    cramya GMAT Titan Default Avatar
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    Post Wed Dec 10, 2008 2:29 pm
    Positive and Negative integers fall under odd or even consideration.

    I should add 0 is non positive and non negative and it is even.

    anayeri Rising GMAT Star Default Avatar
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    Post Wed Dec 10, 2008 2:37 pm
    thanks guys!

    VP_Jim GMAT Instructor Default Avatar
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    Post Thu Dec 11, 2008 9:38 pm
    Good point about zero. Lots of data sufficiency questions hinge upon your knowing the zero properties.

    While we're at it, 0 and 1 aren't prime!

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    cramya GMAT Titan Default Avatar
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    Post Thu Dec 11, 2008 9:40 pm
    Jim,
    Good point! I think it would be right to add that only intgers are considered for even/odd determination.

    If the question reads is x even we can say the question is asking is x an even integer?

    Thoughts/suggestions welcome!


    Regards,
    Cramya

    VP_Jim GMAT Instructor Default Avatar
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    Post Fri Dec 12, 2008 10:03 am
    Yes, that's true. Even/odd only applies to integers (negative, zero, and positive).

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    cramya GMAT Titan Default Avatar
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    Post Fri Dec 12, 2008 8:30 pm
    Quote:
    Yes, that's true. Even/odd only applies to integers (negative, zero, and positive).
    Thanks Jim!

    rajataga Rising GMAT Star Default Avatar
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    Post Sat Dec 27, 2008 1:28 am
    Hi,

    Sorry to start this again, but I am asking specifically about the GMAT here....

    as far as i can remember, in higher maths, ALL Rational numbers can be classified as odd or even, depending on whether their last digit is a multiple of 2, even for decimals.

    just wanted a GMAT perspective here...

    Thanks.

    cramya GMAT Titan Default Avatar
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    Post Sat Dec 27, 2008 9:44 am
    When we say odd or even we refer to only INTEGERS (applies to GMAT also).

    Negative integers
    0-> Non positive and non negative
    Positive Integers

    Hope this helps!

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