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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.

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βˆ™ 14y ago
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βˆ™ 11y ago

The factors of 15 are:

1, 3, 5, 15

The factors of 21 are:

1, 3, 7, 21

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Q: What are the factors and prime factors of 15 and 21?
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What are the factors tree and prime factors of 15?

Factors of 15 are: 1 3 5 and 15 of which 3 and 5 are prime factors


What is the prime factors for 15?

The Prime Factors of 15 are 3, 5


What does common prime factors mean?

When two or more numbers have one or more of the same primes as factors, those prime factors are called common prime factors. For example, the prime factors of 6 are 2 and 3, and the prime factors of 21 are 3 and 7, so 3 is a common prime factor of 6 and 21.


What are the factors of 15 21 and 33?

The factors of 15 are: 1, 3, 5, 15 The factors of 21 are: 1, 3, 7, 21 The factors of 33 are: 1, 3, 11, 33


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

1, 3, 7, 21 3 and 7 are prime. 3 x 7 is the prime factorization. No exponents are required.

Related questions

What are the factors and prime factors of -105?

The factors of -105 are 1, 3, 5, 7, 15, 21, 35, 105 and their negatives. The prime factors are 3, 5 and 7


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.


Prime factors of 21?

The prime factors of 21 are 3,7.


What are prime factors of 15?

The prime factors of 15 are 3 and 5.


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 factors and prime factors of 525?

The factors of 525 are: 1 3 5 7 15 21 25 35 75 105 175 525The prime factors are: 3, 5 and 7


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.