True Definition (Natural Numbers)

The set of natural numbers consists of the numbers 1, 2, 3, ... .

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Common Notation

The notation ℕ represents the entire set of natural numbers. It is also written as

ℕ = {1,2, 3,...}

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Conceptual Definition

The set of natural numbers is all numbers that a caveman would need.

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Examples

The following are examples of natural numbers:

• 87
• 168
• 1
• 2,000,324,881