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What factor of 21 is a prime factor?

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Anonymous

∙ 15y ago
Updated: 8/18/2019

21 = 3 x 7. Both these factors are prime.

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∙ 15y ago
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Related Questions

Is 21 a prime factor?

no


What is a prime number for 12 and 21?

3 is a prime factor of 12 and of 21.


What is the composite number between 20 and 50 whose prime factor is 21?

21 is not a prime factor, it is 3 x 7


Is 21 a factor of a prime number?

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.


Are 14 and 21 relatively prime?

No, 14 and 21 are not relatively prime. They share the factor 7.No.


What is a prime factor of 12 and 21?

3


Is 21 a factor of 182?

No. 21 is not a factor of 182. The prime factorization of 182 is 21 x 71 x 131.


What are the prime factor product of 21?

21 = 3 x 7


What is a common prime factor of 21 and 411?

It is 3 that is a common prime factor to both numbers


What is the factor tree of 21?

3x7=21 3 and 7 are prime numbers, so 3x7 is the factor tree of the number 21.


What is the prime factor of 21?

The prime factors of 21 are 3 and 7.


What prime number is a factor of 21?

3 and 7

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