odd number

American  

[od nuhm-ber] / ˈɒd ˈnʌm bər /

noun

1. a number that leaves a remainder of 1 when divided by 2.

   7, 13, and 195 are odd numbers.

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Etymology

Origin of odd number

First recorded in 1350–1400

Example Sentences

Others throw the number out entirely and follow what many Southern Italian families have long done: just make an odd number of fish dishes.

From Salon

They are classified as odd-Z elements -- possessing an odd number of protons -- and are crucial for both life and the development of planets.

From Science Daily

Ramaswamy laid out his plans for federal workers in a podcast: “If your Social Security Number ends in an odd number, you're out. If it ends in an even number, you're in. There's a 50% cut right there. Of those who remain, if your Social Security Number starts in an even number, you're in. And if it starts with an odd number, you're out. Boom, that's a 75% reduction, then literally, sarcastically, okay.”

From Salon

Of those who remain, if your Social Security number starts with an even number, you’re in, and if it starts with an odd number, you’re out.

From Slate

And then there’s the annoying odd number thing, based on the specious notion that readers are more curious about the specificity of, say, nine and 21 than 10 and 20.

From Los Angeles Times