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Is 21 a factor of a prime number?

Updated: 10/19/2022

Wiki User

14y ago

No. The only factors of a Prime number are 1 and itself. The only way that 21 could be a factor of a prime number is if it were a prime number, but it is not because 21 is also divisible by 3 and 7.

Wiki User

14y ago

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Q: Is 21 a factor of a prime number?
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3 is a prime factor of 12 and of 21.

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