natural number

noun

1
: the number 1 or any number (such as 3, 12, 432) obtained by adding 1 to it one or more times : a positive integer
2
: any of the positive integers together with 0 : a nonnegative integer

Examples of natural number in a Sentence

Recent Examples on the Web
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At the time that Russell presented his antinomy, a set generally referred to a collection of things: The natural numbers, for example, form a set, as does the set of all inhabitants that do not shave themselves. Manon Bischoff, Scientific American, 15 Aug. 2024 Just as molecules are composed of atoms, in math, every natural number can be broken down into its prime factors—those that are divisible only by themselves and 1. Byzack Savitsky, science.org, 29 July 2024

Word History

First Known Use

1763, in the meaning defined at sense 1

Time Traveler
The first known use of natural number was in 1763

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Cite this Entry

“Natural number.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/natural%20number. Accessed 4 Sep. 2025.

Kids Definition

natural number

noun
: the number 1 or any number (as 3, 12, or 432) obtained by adding 1 to it one or more times : a positive whole number

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