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## Can negative numbers be odd/even?

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anayeri Senior | Next Rank: 100 Posts
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#### Can negative numbers be odd/even?

Wed Dec 10, 2008 1:52 pm
I know this is probably a silly question, but are negative numbers also even and odd?

cramya Legendary Member
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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 Senior | Next Rank: 100 Posts
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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.

niraj_a Legendary Member
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Wed Dec 10, 2008 2:12 pm
i believe so, yes

cramya Legendary Member
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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 Senior | Next Rank: 100 Posts
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Wed Dec 10, 2008 2:37 pm
thanks guys!

VP_Jim GMAT Instructor
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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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Jim S. | GMAT Instructor | Veritas Prep

cramya Legendary Member
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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
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Fri Dec 12, 2008 10:03 am
Yes, that's true. Even/odd only applies to integers (negative, zero, and positive).

_________________
Jim S. | GMAT Instructor | Veritas Prep

cramya Legendary Member
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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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