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# Is the numbers 19 21 and 23 a composite number?

Updated: 10/19/2022

Wiki User

7y ago

No, they are three numbers, not one. 21 is composite.

Wiki User

7y ago

Wiki User

7y ago

21 is composite, 19 nd 23 are prime.

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Q: Is the numbers 19 21 and 23 a composite number?
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19 is a prime number. Its only factors are 1 and 19. 21 is a composite number. Its factors are 1, 3, 7, and 21. 23 is a prime number. Its only factors are 1 and 23.

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4, 21