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The GCF is 1.

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Q: What is the greatest common factor of 4 8 15 and 20?
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What is the greatest factor of 15 and 20?

The greatest factor of 15 is 15. The greatest factor of 20 is 20. The greatest common factor of 15 and 20 is 5.


What is the greatest common factor 15 20 25?

The greatest common factor of 15, 20, and 25 is 5.


What is the greatest common 15 and 20?

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The Greatest Common Factor of 15, 35, 20 is 5.


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The Greatest Common Factor (GCF) is: 5


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The Greatest Common Factor of 15, 20 and 25 is 5.


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The GCF of 15, 20, and 30 is 5.5


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What is the greatest common factor of 8 15 and 20?

It is: 1


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What is the greatest common factor of 10 15 and 20?

The greatest common factor of 10, 15, and 20 is 5.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 10 are 1, 2, 5, and 10.The factors of 15 are 1, 3, 5, and 15.The factors of 20 are 1, 2, 4, 5, 10, and 20.The common factors are 1 and 5. Therefore, the greatest common factor is 5.If you mean: 10, 15 and 20 then it is 5 that is the greatest common factor