Definition

Counting Numbers

Counting numbers, also known as natural numbers, are the set of positive numbers used to count objects: 1,2,3,1, 2, 3, \dots The three-dot notation (\dots), called an ellipsis, indicates that the pattern continues without end. These are the most fundamental numbers encountered in algebra and everyday life.

0

1

Updated 2026-05-02

Tags

OpenStax

Elementary Algebra @ OpenStax

Ch.1 Foundations - Elementary Algebra @ OpenStax

Algebra

Math

Ch.6 Polynomials - Elementary Algebra @ OpenStax

Prealgebra

Intermediate Algebra @ OpenStax

Ch.1 Foundations - Intermediate Algebra @ OpenStax

Related
Learn After