Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun mathematics An integer that possesses at least one characteristic of a prime number without actually being prime.
  • adjective Describing such an integer.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

pseudo- +‎ prime

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Examples

  • (A pseudoprime is a number that satisfies Fermat†™ s little theorem for a certain base, yet it†™ s still not prime.)

    Yankee Pot Roast 2008

  • - Maybe 40-45mph on the gusts in Suitland. (@ajfroggie) - MD-410 thru Hyattsville flooded. (@pseudoprime) - The June 28 storm took down a tall tree in a small strip of woods just outside my office in Chantilly, VA.

    Severe storms heading east of city 2010

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