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Is a factorial an integer

Updated: 11/3/2022
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Yes. A factorial is an integer, since it is the product of one or more integers.

The proof of this is that any integer can be expressed as a fraction with a denominator of 1, and that if you multiply all of these fractions together, you multiply the numerators and then the denominators. Since all of the denominators are 1, their product can only be 1, therefore a factorial is an integer.

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Q: Is a factorial an integer
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