Concept information
Preferred term
natural numbers
Definition(s)
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In mathematics, the natural numbers are the numbers 1, 2, 3, etc., possibly including 0 as well. Some definitions, including the standard ISO 80000-2, begin the natural numbers with 0, corresponding to the non-negative integers 0, 1, 2, 3, ..., whereas others start with 1, corresponding to the positive integers 1, 2, 3, ... Texts that exclude zero from the natural numbers sometimes refer to the natural numbers together with zero as the whole numbers, while in other writings, that term is used instead for the integers (including negative integers). In common language, particularly in primary school education, natural numbers may be called counting numbers to intuitively exclude the negative integers and zero, and also to contrast the discreteness of counting to the continuity of measurement—a hallmark characteristic of real numbers.
(Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Natural_number)
Broader concept(s)
Narrower concept(s)
- abundant number
- almost perfect number
- amicable numbers
- Bell number
- Carmichael number
- colossally abundant number
- composite number
- cyclic number
- deficient number
- Descartes number
- equidigital number
- Erdős-Nicolas number
- Euclid number
- extravagant number
- figurate number
- frugal number
- happy number
- harmonic divisor number
- hemiperfect number
- highly abundant number
- highly composite number
- highly totient number
- hyperperfect number
- Kostka number
- Lucas-Carmichael number
- Lucas number
- lucky number
- lucky number of Euler
- Mersenne prime
- multiply perfect number
- noncototient number
- nontotient number
- pandigital number
- perfect number
- powerful number
- practical number
- prime number
- prime power
- primitive semiperfect number
- Pythagorean prime
- Pythagorean triple
- quasiperfect number
- refactorable number
- Riesel number
- semiperfect number
- semiprime number
- set-theoretic definition of natural numbers
- Sierpiński number
- smooth number
- sociable number
- solitary number
- sphenic number
- square-free integer
- sublime number
- superabundant number
- superior highly composite number
- superperfect number
- twin prime numbers
- unitary perfect number
- untouchable number
- weird number
- Wolstenholme number
- Zeisel number
In other languages
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French
URI
http://data.loterre.fr/ark:/67375/PSR-CVDPQB0Q-M
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