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Answer:

The common factors of 4 and 18 are 1 and 2.

The greatest common factor of 4 and 18 is 2.

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 4 are 1, 2, and 4.

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

The common factors are 1 and 2; the greatest common factor is 2.

The common factors and greatest common factor can also be calculated by identifying the common prime factors and multiplying them together to identify the greatest common factor, and then taking all the factors of it to determine the common factors.

The prime factors of 4 are 2 and 2.

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

The prime factors in common are a single 2, so the greatest common factor is 2. The factors of 2 are 1 and 2, which are the common factors.

1 and 2

Q: What are the common factors of 4 and 18?

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

Factors of 18 are 1, 18, 2, 9, 3, 6. Factors of 72 are 1, 72, 2, 36, 3, 24, 4, 18, 6, 12, 8, 9. So, Common Factors of both are: 1, 2, 3, 6, and 18. 18 is the GCF.

Common factors of 15 and 18 are: 1 and 3.

The common factors of 18, 20, and 24 are: 1 and 21 and 2

The common positive integer factors of 18 and 30 are: 1, 2, 3, 6

Related questions

The GCF of 4 and 18 is 2.

The only common factor of 4, 18, and 27 is 1.

The factors of 18 are: 1, 2, 3, 6, 9, 18.The factors of 412 are: 1, 2, 4, 103, 206, 412.The common factors are: 1, 2

1 and 2

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

The factors of 16 are 2, 4 and 8. The factors of 36 are 2, 4, 9, 12 and 18. The common factors are therefore 2 and 4. The common prime factor is 2.

The factors of 18 are: 1, 2, 3, 6, 9, 18 The factors of 20 are: 1, 2, 4, 5, 10, 20 The factors of 50 are: 1, 2, 5, 10, 25, 50 The common factors are: 1, 2 The factors of 12 are: 1, 2, 3, 4, 6, 12 The factors of 15 are: 1, 3, 5, 15 The factors of 18 are: 1, 2, 3, 6, 9, 18 The common factors are: 1, 3

The factors of 12 are 1, 2, 3, 4, 6, and 12The factors of 18 are 1, 2, 3, 6, 9, and 18The factors of 20 are 1, 2, 4, 5, 10, and 20The common factors of 12, 18 and 20 are 1 and 2The common factors of 12 and 18 are 1, 2, 3, and 6The common factors of 12 and 20 are 1, 2, and 4The common factors of 18 and 20 are 1 and 2The total number of factors for 12, 18 and 20 are all the same (6).

The factors of 18 are 1,2,3,6,9 and 18. For them to be common, they need to be compared to another set of factors.

The factors of 18 are 1,2,3,6,9 and 18. For them to be common, they need to be compared to another set of factors.

The factors of 36 are:1, 2, 3, 4, 6, 9, 12, 18, 36The factors of 54 are:1, 2, 3, 6, 9, 18, 27, 54The common factors are:1, 2, 3, 6, 9, 18

The factors of 18 are: 1, 2, 3, 6, 9, 18.The factors of 28 are: 1, 2, 4, 7, 14, 28.The factors of 34 are: 1, 2, 17, 34.The common factors are: 1, 2