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The prime factors of 18 are 2, 3, and 3.

The prime factors of 90 are 2, 3, 3, and 5.

The prime factors they have in common are 2, 3, and 3.

Since 18 is a factor of 90, its prime factors will be the prime factors that the two numbers have in common.

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โˆ™ 2009-04-26 17:52:17
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Q: What are the prime factors in common of 18 and 90?
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Related questions

The common prime factors of 19 and 90 are?

19 and 90 have no common prime factors.


What prime factors do 75 and 90 have in common?

The prime factors of 70 are 2, 5, and 7. The prime factors of 90 are 2, 3, 3, and 5. The prime factors that 70 and 90 have in common are 2 and 5. The greatest common factor of 70 and 90 is the product of the prime factors they have in common, so it is 2 x 5 = 10.


What are the common factors of 9 18 and 90?

The common factors of 9, 18 and 90 are 1, 3 and 9.


What prime factors do 10 and 90 have in common?

They have the prime factors 2 and 5 in common.


What are the common prime factors of 19 and 90?

there are none, 19 is prime and it doesnt go into 90


What are the factors and prime factors 90?

The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90 The prime factors of 90 are: 2, 3, 5


What is the greatest common factor of 36 and 90?

The greatest common factor of 36 and 90 is 18.The common factors of 36 and 90 are 1, 2, 3, 6, 9, and 18.Definition: A factor is a divisor - a number that will evenly divide into another number. The common factors of two or more numbers are all the factors that the numbers have in common. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Methods: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 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36.The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90.The common factors are 1, 2, 3, 6, 9, and 18. Therefore, the greatest common factor is 18.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 36 are 2, 2, 3, and 3.The prime factors of 90 are 2, 3, 3, and 5.The prime factors in common are 2, 3, and 3, so the greatest common factor is 2 x 3 x 3 = 18.


What is the greatest common factor of 90 and 105?

The GCF of 90 and 105 is 5. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The factors of 105 are 1, 3, 5, 7, 15, 21, 35, and 105. The common factors are 1, 3, 5, and 15. Therefore, the greatest common factor is 15. The greatest common factor can also be determined from the prime factors, multiplying the common prime factors together. The prime factors of 90 are 2, 3, 3, and 5. The prime factors of 105 are 3, 5, and 7. The common prime factors are 3 and 5, so the greatest common factor is 3 x 5 = 15.


What is the greatest common factor of 12 and 90?

The factors of 12 are 1, 2, 3, 4, 6, and 12. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The common factors are 1, 2, 3, and 6, so the greatest common factor is 6. You can also determine this from the prime factors. The prime factors of 12 are 2, 2, and 3. The prime factors of 90 are 2, 3, 3, and 5. The prime factors they have in common are 2 and 3, so the greatest common factor is 2 x 3 = 6.


Which prime factors do 75 and 90 have in common?

3,5


What are the common factors of 90 and 144?

The common factors of 90 and 144 are: 1, 2, 3, 6, 9, and 18


What are the common factors of 36 and 90?

The common factors of 36 and 90 are: 1, 2, 3, 6, 9, and 18


What is the greatest common factor of 18 and 90?

Since 18 is a factor of 90 and it is the largest factor of itself, the greatest common factor of 18 and 90 is 18.Since 18 is a factor of 90, it is automatically the GCF.


What is the least common multiple of 5 10 and 18?

The prime factorizations are: 5 3 * 3 * 2 2 * 5 Eliminating the common factors, we get 3 * 3 * 2 * 5 Simplifying gives us 90 The LCM of 5, 18, and 10 is 90.


What are the common prime factors of 10 and 90?

2 and 4


What prime factors do 50 and 90 have in common?

2 and 5


What prime factors do 70 and 90 have in common?

2 and 5


What is the greatest common factor of 25 and 90?

The GCF of 25 and 90 is 5.One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 25 are 1, 5, and 25.The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90.The common factors are 1 and 5. Therefore, the greatest common factor is 5.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 25 are 5 and 5.The prime factors of 90 are 2, 3, 3, and 5.The prime factors in common are a single 5, so the greatest common factor is 5.5 is the GFC of 25 and 90


What is the greatest common factor of 36 54 and 90?

The GCF of 36, 54, and 90 is 18One 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 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36.The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90.The common factors are 1, 2, 3, 6, 9, and 18. Therefore, the greatest common factor is 18.


What is the least common factor of 54 and 90?

The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The common factors are 1, 2, 3, 6, 9, and 18. The least (smallest) common factor is 1. The smallest common prime factor is 2.


Is 1 the greatest common factor of 42 and 90?

No, it is 6. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The common factors are 1, 2, 3, and 6, so the greatest common factor is 6. You can also determine this by looking at the prime factors. The prime factors of 42 are 2, 3, and 7. The prime factors of 90 are 2, 3, 3, and 5. The prime factors they have in common are 2 and 3, so the greatest common factor is 2 x 3 = 6.


What are the common factors of 36 72 and 90?

The common factors of 36, 72, and 90 are: 1, 2, 3, 6, 9, and 18


What is the greatest common factors of 72 and 90?

18


What are the factors and prime factors of 90?

The 12 factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The factor pairs of 90 are 1 x 90, 2 x 45, 3 x 30, 5 x 18, 6 x 15, and 9 x 10. The prime factors of 90 are 2, 3, 3, and 5. The distinct prime factors of 90 are 2, 3, and 5. The prime factorization of 90 is 2 x 3 x 3 x 5 or, in exponential form, 2 x 32 x 5. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90. The prime factors of 90 are 2, 3, 5.


What factors do 54 and 90 have in common?

The common factors are: 1, 2, 3, 6, 9, 18