prime number
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English
Pronunciation
Noun
prime number (plural prime numbers)
- (number theory) Any natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers.
- The fundamental theorem of arithmetic states that every natural number greater than 1 can be factorized into prime numbers in a way that is unique up to the order in which the factors are written.
- 2007, James Alfred Walker, Julian Francis Miller, Predicting Prime Numbers Using Cartesian Genetic Programming, Marc Ebner, Michael O'Neill, Anikó Ekárt, Anna Isabel Esparcia-Alcázar, Leonardo Vanneschi (editors), Genetic Programming: 10th European Conference, EuroGP 2007, Proceedings, Springer, LNCS 4445, page 215,
- As the evolved solution for the first 16 prime numbers was capable of accepting inputs up to 31, we decided to extend the experiment to see how the solution generalised on 15 previously unseen inputs (just as we did with the integer-based approach). From the 15 unseen inputs, 7 of the predicted 15 outputs were prime numbers, which is just below 50%, indicating that the solution had learned something about "primeness" or favoured prime numbers.
- 2010, Colin Foster, Resources for Teaching Mathematics: 14-16, Continuum International Publishing Group, page 168:
- The most common definition of a prime number used in school seems to be 'an integer whose only factors are one and itself', which unfortunately leaves open the question of whether one is itself a prime number. Until the nineteenth century, most mathematicians regarded one as a prime number – Henri Lebesgue (1875–1941) is often said to be the last professional mathematician to call one prime – so it is a little unfair to regard learners as silly for thinking this today, or for questioning why we do not now regard one as a prime number – it is still a good question.
- 2013 July-August, Sarah Glaz, “Ode to Prime Numbers”, in American Scientist, volume 101, number 4:
- Some poems, echoing the purpose of early poetic treatises on scientific principles, attempt to elucidate the mathematical concepts that underlie prime numbers. Others play with primes’ cultural associations. Still others derive their structure from mathematical patterns involving primes.
- (obsolete, number theory) Any natural number (including 1) that is divisible only by itself and 1.
Usage notes
- Modern mathematical usage specifies that 1 is not a prime number; some older texts consider 1 to be a prime number.
- Using the obsolete specification would affect the phrasing of the fundamental theorem of arithmetic: the factorisation of a given natural number would be unique only with regard to prime factors other than 1.
Synonyms
- (natural number >1 divisible only by itself and 1): prime
Antonyms
- (antonym(s) of “natural number divisible only by itself and 1”): composite number
Hypernyms
Hyponyms
- additive prime number
- annihilating prime number
- Bell number prime number
- Carol prime number
- Catalan prime number
- centered decagonal prime number
- centered heptagonal prime number
- centered square prime number
- centered triangular prime number
- Chen prime number
- circular prime number
- cousin prime number
- Cuban prime number
- Cullen prime number
- Delannoy number prime number
- deletable prime number
- dihedral prime number
- double factorial prime number
- double Mersenne prime number
- Eisenstein prime number without imaginary part
- emirp
- Euclid-Mullin Sequence prime number
- Euclid prime number
- Euler irregular prime number
- even prime number
- factorial prime number
- Fermat prime number
- Fibonacci prime number
- fortunate prime number
- Gaussian prime number
- generalized Fermat prime number base 10
- Genocchi number prime number
- Gilda's prime number
- good prime number
- happy prime number
- harmonic prime number
- Higgs prime number for squares
- highly cototient number prime number
- irregular prime number
- isolated prime number
- Kynea prime number
- left-truncatable prime number
- Leyland prime number
- long prime number
- Lucas prime number
- lucky prime number
- Markov prime number
- Mersenne prime number
- Mills prime number
- minimal prime number
- Motzkin prime number
- Newman–Shanks–Williams prime number
- non-generous prime number
- odd prime number
- Padovan prime number
- palindromic prime number
- palindromic wing prime number
- partition prime number
- Pell prime number
- permutable prime number
- Perrin prime number
- Pierpont prime number
- Pillai prime number
- prime number of Binary Quadratic Form
- primeval prime number
- primorial prime number
- Proth prime number
- Pythagorean prime number
- Quartan prime number
- Ramanujan prime number
- regular prime number
- repunit prime number
- right-truncatable prime number
- safe prime number
- Schröder-Hipparchus number prime number
- Schröder prime number
- self prime number
- sexy prime number
- Smarandache-Wellin prime number
- Smarandache–Wellin prime number
- Solinas prime number
- Sophie Germain prime number
- star prime number
- Stern prime number
- super-prime number
- supersingular prime number
- swinging prime number
- Thabit number prime number
- twin prime number
- two-sided prime number
- Ulam number prime number
- unique prime number
- Wagstaff prime number
- Wall–Sun–Sun prime number
- Weakly prime numbers
- Wedderburn-Etherington number prime number
- Wieferich prime number
- Wilson prime number
- Wolstenholme prime number
- Woodall prime number
Derived terms
Related terms
Translations
natural number
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See also
Further reading
List of prime numbers on Wikipedia.Wikipedia - Fundamental theorem of arithmetic on Wikipedia.Wikipedia
- Prime number theorem on Wikipedia.Wikipedia
- Goldbach's conjecture on Wikipedia.Wikipedia
- Prime number on Encyclopedia of Mathematics
- Prime Number on Wolfram MathWorld
