threeven

Blend of three +‎ even (“divisible by two”). Earliest known usage is from 2006 (see quotes).

• (Received Pronunciation) IPA^(key): /ˈθɹiːvən/

• Audio (Southern England):

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• (General American) IPA^(key): /ˈθɹivən/

• Audio (General American):

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• Rhymes: -iːvən
• Hyphenation: three‧ven

threeven (not comparable)

1. (mathematics, informal) Divisible by three. [from 2000s]

   Antonym: throdd

   Hypernyms: evenly divisible < divisible (strict sense) < divisible (broad sense)

   Twenty-seven is a threeven number.

   • 2006 July 30, Jeremy Targett, “even/odd analogy for ternary?”, in sci.math‎^[1] (Usenet):

     Are there terms in use anywhere for numbers equal to 0 mod 3, 1 mod 3 and 2 mod 3? I need to refer to these properties and would rather use established names than invent my own. (If I do have to invent names, what do you suggest? First thing off the top of my head is "even", "surodd" and "subodd". Maybe if the use of "even" was judged confusing, "threeven" would be a cute coinage)

   • 2011 January 31, Mike South, “a result that shouldn't be called a result since it's practically a restatement of the definitions?”, in mathfuture mailing list‎^[2]:

     It just seems utterly obvious to me, along the lines of people thinking 2 is cool because it's the only "even prime" (people do this). Three is the only "threeven" prime! Five is the only "fiveven" prime! It's just a restatement of the definition.