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The GCF is 10.

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Q: What is the greatest common factors between 20 and 90?
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What is the greatest common factor of 20 and 90?

The Greatest Common Factor of 20 and 90 is 10, because the factors of 20 are: 20:1,2,4,5,10,20 The factors of 90 are: 90:1,2,3,5,6,9,10,15,18,30,45,90 So, the common factors are 1,2,5,10 10 is the greatest number of them so 10 is the Greatest Common Factor. THE ANSWER IS 10


What are the common factors and greatest common factor of 10 and 20?

1,2,5,10 are the common factors, and the Greatest Common Factor is 10.


What are the greatest common factors of 17 and 20?

The factors of 17 are: 1, 17 The factors of 20 are: 1, 2, 4, 5, 10, 20 The common factors are: 1 The Greatest Common Factor: 1


What are the common factors and greatest common factor of 20?

There is neither a greatest common factor nor common factors of a single number, such as 20, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor. The factors of 20 are 1, 2, 4, 5, 10, and 20. The prime factors of 20 are 2, 2, and 5. Examples: The common factors of 20 and 70 are 1, 2, 5, and 10; the greatest common factor is 10. The common factors of 20 and 32 are 1, 2, and 4; the greatest common factor is 4. The common factors of 20 and 140 are 1, 2, 4, 5, 10, and 20; the greatest common factor is 20.


What are the greatest common factors of 20 and 36?

The Greatest Common Factor (GCF) of 20 and 36 is: 4


What is the greatest common factor of 12 20 and 26?

One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 12 are 1, 2, 3, 4, 6, and 12.The factors of 20 are 1, 2, 4, 5, 10, and 20.The factors of 26 are 1, 2, 13, and 26.The common factors are 1 and 2. Therefore, the greatest common factor is 2.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 12 are 2, 2, and 3.The prime factors of 20 are 2, 2, and 5.The prime factors of 26 are 2 and 13.The prime factors in common are a single 2, so the greatest common factor is 2.Another way to approach this is to look at the differences between the numbers. The difference between 12 and 20 is 8. The difference between 20 and 26 is 6. The greatest common factor cannot be greater than the smallest difference between the numbers, and must be a factor of the differences between the numbers. So, the greatest common factor of 6 and 8 will also be the greatest common factor of 12, 20, and 26. Next, you can compare the difference of the differences: the difference between 6 and 8 is 2, which divides both 6 and 8, so the greatest common factor of 6 and 8 is 2. Thus, the greatest common factor of 12, 20, and 26 is 2.2126,23,2,22010,25,2,2262,13The only common factor is 2, the GCF.


What are the greatest common factors for 14 and 20?

The Greatest Common Factor (GCF) is: 2


What are the greatest common factors of 20 30 40?

The greatest common factor is 10.


What is the greatest common factor of 20 12 and 20?

The GCF of 12 and 20 is 4.The factors of 12 are 1, 2, 3, 4, 6, and 12. The factors of 20 are 1, 2, 4, 5, 10, and 20.The factors they have in common are 1, 2, and 4. Therefore, 4 is the greatest common factor.The greatest common factor can also be determined from the prime factors by multiplying the common prime factors together.The prime factors of 12 are 2, 2, and 3.The prime factors of 20 are 2, 2, and 5.The common prime factors are 2 and 2, so the greatest common factor is 2 x 2 = 4.The greatest common factor of 12 and 20 is 4


What is the greatest common factor between 10 and 18 and 32?

The GCF of 18, 20, and 32 is 2. Factors of 18... 1,2,3,6,9 & 18 Factors of 20... 1,2,4,5,10 & 20 Factors of 32... 1,2,4,8,16 & 32... Therefore the GCF would be 2 !


What is the greatest common factor of 20 and 55?

One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 20 are 1, 2, 4, 5, 10, and 20. The factors of 55 are 1, 5, 11, and 55. 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 20 are 2, 2, and 5. The prime factors of 55 are 5 and 11. The prime factors in common are a single 5, so the greatest common factor is 5.


What are the greatest common factors of 15 and 20?

5