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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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14y ago
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12y 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 factor of 315?

The factors of 315 are: 1 3 5 7 9 15 21 35 45 63 105 315 The prime factors are: 3 x 3 x 5 x 7