natural numbers
1, 2, 3, 4, 5, …
Natural numbers are the set of positive integers (whole numbers) such as 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and so on, where there is no fractional or decimal part. The natural numbers have no endpoints and are infinite in number. The symbol used to denote the natural numbers is N or ℕ. Natural numbers are also sometimes called counting numbers because they are used for counting objects, such as apples, people, or cars. Natural numbers are used extensively in mathematics to solve problems, create equations, and explore mathematical concepts. They are one of the fundamental concepts taught in early mathematics education and provide the foundation for more complex mathematical concepts such as algebra and calculus.
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