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18 and 81 share only one prime factor: 3

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Q: Common prime factors 18 81
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What is the greatest common factor of 37 and 81?

The factors of 37 are 1 and 37. The factors of 81 are 1, 3, 9, 27, and 81. They have only one factor in common - 1. Since the greatest common factor of 37 and 81 is 1, they are relatively prime. You can also look at the prime factors to determine the greatest common factor. 37 is a prime number, so its only prime factor is itself, 37. The prime factors of 81 are 3, 3, 3, and 3. They have no prime factors in common, so they are relatively prime, which means their greatest common factor is 1.


What are the common factors of 81?

The factors of 81 are 1, 3, 9, 27 and 81. For them to be common, they need to be compared to another set of factors.


What is the greatest common factor of 18 27 and 81?

A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that both numbers have in common. 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 18 are 1, 2, 3, 6, 9, and 18. The factors of 27 are 1, 3, 9, and 27. The factors of 81 are 1, 3, 9, 27, and 81. The common factors are 1, 3, and 9. Therefore, the greatest common factor is 9.


What is the LCM of 81 and 64?

The LCM is 5184. The numbers 81 and 64 have no common factors. When you have two relatively prime numbers, you find their LCM by multiplying them. So 5184 is 81x64.


What are the common factors of 81 108 and 162?

The common factors of 81, 108, and 162 are: 1, 3, 9, and 27

Related questions

What is the greatest common factor for 18 and 81?

The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 81 are 1, 3, 9, 27, and 81. The common factors are 1, 3, and 9. Therefore, the greatest common factor is 9. You can also determine the greatest common factor from the prime factors. The prime factors of 18 are 2, 3, and 3. The prime factors of 81 are 3, 3, 3, and 3. The prime factors in common are 3 and 3, so the greatest common factor is 3 x 3 = 9.


What are the common prime factors of 81 and 200?

81 and 200 have no common prime factors.


What are the common factors of 18 and 81?

The common factors of 18 and 81 are; 1, 3, and 9. The factors of 18 are; 1, 2, 3, 6, 9, and 18. The factors of 81 are 1, 3, 9, 27, and 81.


What are the common factors of 18 27 and 81?

The common factors of 27, 18, and 81 are 1, 3, and 9.


Is 625 and 81 relatively prime?

625 and 81 are relatively prime because they have common prime factors.


What is the greatest common factor of 35 and 81?

The factors of 35 are 1, 5, 7, and 35. The factors of 81 are 1, 3, 9, 27, and 81. The only factor they have in common is 1. Therefore, 1 is the greatest common factor. This means that 35 and 81 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 35 are 5 and 7. The prime factors of 81 are 3, 3, 3, and 3. They have no prime factors in common, so they are relatively prime, which means the only factor they have in common is 1.


What is the greatest common factor of 37 and 81?

The factors of 37 are 1 and 37. The factors of 81 are 1, 3, 9, 27, and 81. They have only one factor in common - 1. Since the greatest common factor of 37 and 81 is 1, they are relatively prime. You can also look at the prime factors to determine the greatest common factor. 37 is a prime number, so its only prime factor is itself, 37. The prime factors of 81 are 3, 3, 3, and 3. They have no prime factors in common, so they are relatively prime, which means their greatest common factor is 1.


What is the greatest common factor of 54 and 81?

The GCF of 54 and 81 is 27One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54.The factors of 81 are 1, 3, 9, 27, and 81.The common factors are 1, 3, 9, and 27. Therefore, the greatest common factor is 27.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 54 are 2, 3, 3, and 3.The prime factors of 81 are 3, 3, 3, and 3.The prime factors in common are 3, 3, and 3, so the greatest common factor is 3 x 3 x 3 = 27. Factors of 54: 1 2 3 6 9 18 27 54 Factors of 81: 1 3 9 27 81 The GCF of 54 and 81 is 27The Greatest Common Factor (GCF) is: 27 .27.


What is the greatest common factor of 18 and 81?

Factors of 18: 1 2 3 6 9 18 Factors of 81: 1 3 927 81 The GCF of 18 and 81 is 9.


What is the greatest common factor of 16 and 81?

The GCF of 16 and 81 is 1. 16's prime factors are 2, 2, 2 and 2 81's prime factors are 3, 3, 3 and 3 Therefore, they do not have any common prime factors, and so the greatest common factor is 1.


What are the factors of 18 and 81?

The factors of 18 are 1,2,3,6,9, and 18. The factors of 81 are 1,3,9,27, and 81.


What are the factors and prime factors 81?

The factors of 81 are: 1 3 9 27 81 The prime factor is: 3