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The GCF of 6 and 18 is 6.

The common factors are 1, 2, 3, and 6.

When one of the numbers divides evenly into the other number, that number is the greatest common factor, because it is the largest factor of itself. Since 6 divides evenly into 18, the greatest common factor is 6.

Another way to determine the greatest common factor is to find all the factors of the numbers and compare them.

The factors of 6 are 1, 2, 3, and 6.

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

The common factors are 1, 2, 3, and 6. Therefore, the greatest common factor is 6.

The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.

The prime factors of 6 are 2 and 3.

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

The prime factors in common are 2 and 3, so the greatest common factor is 2 x 3 = 6.

The prime factorization of 6 is 2x3 and for 18 it is 2x3x3. Both factorizations have a 2 and a 3 in common, which multiplied together equal the GCF 6.

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7y ago

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More answers

Since 6 is a factor of 18, it is automatically the GCF.

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Wiki User

9y ago
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I think you're actually looking for their "gcf". It's 6 .

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Wiki User

12y ago
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GCF(18, 6) = 6.

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Wiki User

7y ago
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20

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Anonymous

4y ago
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Q: What is the greatest common factor of 6 and 18?
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