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Q: What are the common prime factors of 45 and 108?
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What is the greatest common factor of 10 and 45?

The GCF of 10 and 45 is 5 The factors of 10 are 1, 2, 5, and 10. The factors of 45 are 1, 3, 5, 9, 15, and 45. The largest factor they have in common is 5, so 5 is the greatest common factor. Or, you can use prime factors. The prime factors of 10 are 2 and 5. The prime factors of 45 are 3, 3, and 5. The prime factors they have in common are a single 5, so 5 is the greatest common factor.


What is the greatest common factor of 27 45 and 108?

The GCF is 9.


What is the greatest common factor of 32 and 45?

The GCF of 32 and 45 is 1. One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 32 are 1, 2, 4, 8, 16, and 32. The factors of 45 are 1, 3, 5, 9, 15, and 45. The common factors are 1. Therefore, 1 is the greatest common factor, which means they are relatively prime. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 32 are 2, 2, 2, 2, and 2. The prime factors of 45 are 3, 3, and 5. They have no prime factors in common, so they are relatively prime.


What is the greatest common factor of 21 and 45?

The GCF of 21 and 45 is 3. One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 21 are 1, 3, 7, and 21. The factors of 45 are 1, 3, 5, 9, 15, and 45. The common factors are 1 and 3. Therefore, the greatest common factor is 3. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 21 are 3 and 7. The prime factors of 45 are 3, 3, and 5. The prime factors in common are a single 3, so the greatest common factor is 3.


What is the greatest common factor of 45 and 76?

One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 45 are 1, 3, 5, 9, 15, and 45.The factors of 76 are 1, 2, 4, 19, 38, and 76.The common factors are a single 1. Therefore, the greatest common factor is 1, which means the numbers are relatively prime.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 45 are 3, 3, and 5.The prime factors of 76 are 2, 2, and 19.There are no prime factors in common, so the numbers are relatively prime, which means the greatest common factor is 1.The GCF of 45 and 76 is 1. 45 and 76 have no factors in common aside from 1. However, this is unhelpful for simplification.

Related questions

What is the greatest prime factors of 45 and 108?

The greatest prime factors are 5 (for 45) and 3 (for 108).


What are the common factors of 45 and 108?

The common factors of 45 and 108 are: 1, 3 & 9.


What are the common factors for 108 and 45?

The highest common factor of 108 and 45 is 9


What are the common factors of 45 72 and 108?

1, 3 and 9


What are the common factors of 45 that are prime?

The prime factors of 45 are 3 and 5.


What is the greatest common factor of 10 and 45?

The GCF of 10 and 45 is 5 The factors of 10 are 1, 2, 5, and 10. The factors of 45 are 1, 3, 5, 9, 15, and 45. The largest factor they have in common is 5, so 5 is the greatest common factor. Or, you can use prime factors. The prime factors of 10 are 2 and 5. The prime factors of 45 are 3, 3, and 5. The prime factors they have in common are a single 5, so 5 is the greatest common factor.


What is the greatest common factor of 27 45 and 108?

The GCF is 9.


What are all the common factors of 12 and 45?

The first step to finding the common prime factors is to list the prime factors of both numbers. For 12 and 45, the prime factors are: 12 = 2x2x3 45 = 3x3x5 The next step is to identify which prime factors are shared by both. In this case, both use a 3. Thus, 3 is the only common prime factor of 12 and 45.


What is the greatest common factor of 32 and 45?

The GCF of 32 and 45 is 1. One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 32 are 1, 2, 4, 8, 16, and 32. The factors of 45 are 1, 3, 5, 9, 15, and 45. The common factors are 1. Therefore, 1 is the greatest common factor, which means they are relatively prime. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 32 are 2, 2, 2, 2, and 2. The prime factors of 45 are 3, 3, and 5. They have no prime factors in common, so they are relatively prime.


What is the greatest common factor of 21 and 45?

The GCF of 21 and 45 is 3. One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 21 are 1, 3, 7, and 21. The factors of 45 are 1, 3, 5, 9, 15, and 45. The common factors are 1 and 3. Therefore, the greatest common factor is 3. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 21 are 3 and 7. The prime factors of 45 are 3, 3, and 5. The prime factors in common are a single 3, so the greatest common factor is 3.


What is the common prime factors of12 and 45?

Just 3.


What are the common factors of 27 and 45?

The common factors of 27 and 45 are 1, 3, and 9. The greatest common factor of 27 and 45 is 9. 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 27 are 1, 3, 9, and 27. The factors of 45 are 1, 3, 5, 9, 15, and 45. The common factors are 1,3, and 9. Therefore, the greatest common factor is 9. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. To then obtain the common factors, list all the factors of the greatest common factor. The prime factors of 27 are 3, 3, and 3. The prime factors of 45 are 3, 3, and 5. The prime factors in common are 3 and 3, so the greatest common factor is 3 x 3 = 9.