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Prime factors of 21

Updated: 4/28/2022
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12y ago

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The prime factors of 21 are 3,7.

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7 x 3

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Related questions

What are the factors and prime factors of 21 in exponet form?

The factors of 21 are: 1 3 7 21 The prime factors are: 3 and 7


What are the prime factors and prime factors of 21?

1, 3, 7, 21 3 and 7 are prime.


What is the factors and prime factors of 21?

The factors are 1, 3, 7 and 21. 3 and 7 are prime.


What are prime numbers of 21?

factors of 21: 3, 7 prime factors of 21: 3, 7


What are the prime factors for 18 and 21?

18 has prime factors 3 & 2 whereas 21 has prime factors 3 & 7.


What are the factors and prime factors of 18 and 21?

The factors of 18 are: 1, 2, 3, 6, 9, and 18.The prime factors of 18 are: 2 and 3.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.


How can you write 21 as a product of its prime factors?

As a product of its prime factors: 3*7 = 21


What are the prime of 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 are the factors and prime factors of 21 squared?

The prime factors of 21 are 3 x 7, so the prime factors of 21 squared are 32 x 72. The factors of 21 squared are 1, 3, 7, 9, 21, 49, 63, 147, and 441.


What are the factors and prime factors of 15 and 21?

The factors of 15 are: 1, 3, 5, and 15.The prime factors of 15 are: 3 and 5.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.


How many prime numbers are there in 21?

21 has two prime factors.


What are the factors and prime factors of -21?

1, -1, 3, -3, 7, -7, 21, -21 3 and 7 are prime.