Real Number Classification Review

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What is a rational number?

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A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero. Examples include 1/2, 3, and -4.

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What is an irrational number?

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What is a natural number?

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Natural numbers are the set of positive integers starting from 1, 2, 3, and so on. They do not include zero or negative numbers.

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What is an integer?

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An integer is a whole number that can be positive, negative, or zero. Examples include -3, 0, and 5.

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What is a whole number?

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Whole numbers are non-negative integers, including zero. They are the set {0, 1, 2, 3, ...}.

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Is 3.14 a rational number?

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Is 4.141141114... a rational number?

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No, 4.141141114... is an irrational number because it has a non-repeating, non-terminating decimal.

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