51Թ

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prime number

noun

Mathematics.
  1. a positive integer that is not divisible without remainder by any integer except itself and 1, with 1 often excluded.

    The integers 2, 3, 5, and 7 are prime numbers.



prime number

noun

  1. Sometimes shortened to: prime.an integer that cannot be factorized into other integers but is only divisible by itself or 1, such as 2, 3, 5, 7, and 11 Compare composite number

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

prime number

  1. A positive integer greater than 1 that can only be divided by itself and 1 without leaving a remainder. Examples of prime numbers are 7, 23, and 67.

  2. Compare composite number

prime number

  1. A number that cannot be divided evenly by any other number except itself and the number one; 1, 3, 5, 7, and 11 are prime numbers.

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51Թ History and Origins

Origin of prime number1

First recorded in 1585–95

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prime moverprime number theorem