Dictionary.com
Thesaurus.com

natural number

American  

noun

  1. a positive integer or zero.


natural number British  

noun

  1. any of the numbers 0,1,2,3,4,… that can be used to count the members of a set; the non-negative integers

"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

natural number Scientific  
  1. A positive integer.


Etymology

Origin of natural number

First recorded in 1755–65

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For someone who is not a natural number eight, he is also up there as the world's best in the position.

From BBC

A notable difference from Almaty was Rodgers' ability to call on natural number nine in Iheanacho.

From BBC

In this case, the natural numbers no longer split into two camps but into nine.

From Scientific American

It deals with two natural numbers, a and b, and their sum, a + b = c.

From Scientific American

If people put forward these replies to the largest natural number question, who would be right?

From Scientific American