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

The factors of 45 are: 1, 3, 5, 9, 15, 45

The common factors are: 1, 3

The Greatest Common Factor (GCF) is: 3

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13y ago
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13y ago
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The answer is 15. The question was What is the GCF of HCF of 15 and 45.

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11y ago

The GCF is 15.

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7y ago

The GCF is 9.

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6y ago

It is: 3

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Q: What are the the greatest common factors of 45 and 15?
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Related questions

Greatest common factors for 60 and 45?

The Greatest Common Factor is 15.


What are the greatest common factors of 45 and 60?

15


What us the greatest common factors of 30 and 45?

It is: 15


What are the greatest common factors of 30 and 45?

The Greatest Common Factor (GCF) is: 15The GCF is 15.


What is the greatest common factor of 30 and 45. Use lists of factors to find the answer.?

The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30 The factors of 45 are: 1, 3, 5, 9, 15, 45 The common factors are: 1, 3, 5, 15 The Greatest Common Factor: GCF = 15


What are greatest common factors of 30 45 75?

The GCF is 15.


What is the greatest common factor for 45 and 60?

The factors of 45 are 1, 3, 5, 9, 15, and 45. The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60. The common factors are 1, 3, 5, and 15. Therefore, the greatest common factor is 15. You can also determine the greatest common factor from the prime factors. The prime factors of 45 are 3, 3, and 5. The prime factors of 60 are 2, 2, 3, and 5. The common prime factors are 3 and 5, so the greatest common factor is 3 x 5 = 15.


What is the greatest common factor for 15 and 45?

The factors of 15 are: 1, 3, 5, 15The factors of 45 are: 1, 3, 5, 9, 15, 45The common factors are: 1, 3, 5, 15The Greatest Common Factor (GCF) is: 15


What are the greatest common factor of 15 45 and 75?

The factors of 15 are: 1, 3, 5, 15The factors of 45 are: 1, 3, 5, 9, 15, 45The common factors are: 1, 3, 5, 15The Greatest Common Factor (GCF) is: 15


What is greatest common factor of 45?

The factors of 45 are 1, 3, 5, 9, 15, 45. For them to be common, they need to be compared to another set of factors.


What is the greatest common factor of 30 and 45 and 75?

GCF(30, 45, 75) = 15.


What is the greatest common factor of 135 and 225?

The GCF of 135 and 225 is 45. One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them. The factors of 135 are 1, 3, 5, 9, 15, 27, 45, and 135. The factors of 225 are 1, 3, 5, 9, 15, 25, 45, 75, and 225. The common factors are 1, 3, 5, 9, 15, and 45. Therefore, the greatest common factor is 45.