Best Answer

The GCF of 2, 12, and 18 is 2. There are a number of ways to come to this answer.

First, the GCF of a set can't be any bigger than the smallest number in the set. In this case, the GCF can't be bigger than 2. Since 2 is a factor of both 12 and 18, it is the GCF.

You could also find the GCF by writing the prime factorization of each member of the set:

The prime factorization of 2 is 1*2

The prime factorization of 12 is 2*2*3

The prime factorization of 18 is 2*3*3

So the GCF is 2.

Q: What is the greatest common factor of 2 12 and 18?

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Because 12 isn't a factor of 18.

6, is the greatest common factor of 12 and 18.

The GCF is 2.

The greatest common factor of 18 and 55 is 1.

The greatest common factor of 18 21 and 42 is 3.

Related questions

The greatest common factor of 12 18 32 and 36 is 2.

Because 12 isn't a factor of 18.

Greatest common factor of 12 and 18 and 24 is 6.

The GCF of 12 and 18 is 6.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 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 (GCF) is: 6The GCF is 6.

The GCF of 3, 12, and 18 is 3

3

GCF of 12 and 18 is 6

The GCF of 12, 18, and 54 is 6

The greatest common factor of 90 and 216 is 18 90 = 2 * 32 * 5 216 = 23 * 33 greatest common factor = 2 * 32 = 2 * 9 = 18 90 / 18 = 5 216 / 18 = 12 because the greatest common factor of these is 1.

The greatest common factor is 18.

6, is the greatest common factor of 12 and 18.

The GCF is 2.