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

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โˆ™ 2010-02-26 21:00:32
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A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

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Q: What factor of 21 is a prime factor?
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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 prime factor tree of 21?

21 3,7


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


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 prime factor of 21?

3 and 7


What is a prime factor of 12 and 21?

3


Are 14 and 21 relatively prime?

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


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.


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 is the smallest prime factor that goes into 21?

3


What prime number is a factor of 12 and 21?

3


What prime number is a factor of 21?

3 and 7


What is the common prime factor of 6 and 21?

It is 3


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 are the factors and prime factor of 21?

The factors are: 1, 3, 7, 21 The prime factors are: 3, 7


What is the greatest common factor of 8 21 and 75?

the greatest common factor of 8 21 and 75 is 1.


What number is a factor of 21 and a prime number?

21 = 3 x 7 both 3 and 7 are prime numbers


What is the prime factor decomposition of 21?

1, 3 and 7


What number is a prime factor of both 12 and 21?

3


Are 21 and 66 relatively prime?

No, they are not. They share 3 as a factor.


Is 21 and 66 relevantly prime?

No, they are not. They share 3 as a factor.


What are the prime factors of 21?

prime factor = prime number which can be divided into the given number with no remainder The prime factors of 21 are 3 and 7.


What is the factor of 21 in a factor tree?

Its factors are: 1 3 7 and 21 Note that 3 and 7 are prime numbers


Are 4 and 21 relatively prime?

Yes, 4 and 21 are relatively prime. Numbers that are relatively prime only have the number 1 as a common factor. That is the case with 4 and 21.