Quick Answer: What Does Common Factor Mean?

What are the common factors of 18 and 30?

Greatest common factor (GCF) of 18 and 30 is 6.

We will now calculate the prime factors of 18 and 30, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18 and 30..

What are the common factors of 18?

The factors of 18 are 1, 2, 3, 6, 9, 18. The factors of 27 are 1, 3, 9, 27. The common factors of 18 and 27 are 1, 3 and 9.

What is the HCF of 12 and 18?

Factors of 18 = 1, 2, 3, 6, 9 and 18. Therefore, common factor of 12 and 18 = 1, 2, 3 and 6. Highest common factor (H.C.F) of 12 and 18 = 6 [since 6 is the highest common factor].

What is the GCF of 15 and 20?

Greatest common factor (GCF) of 15 and 20 is 5.

What is the common factor of 24?

The common factors of 24 and 36 are 1, 2, 3, 4, 6 and 12. The greatest common factor of 24 and 36 is 12. Example 5: Find the GCF of 56 and 63. The common factors of 56 and 63 are 1 and 7.

How do you find the common factor?

The greatest common factor, or GCF, is the greatest factor that divides two numbers. To find the GCF of two numbers: List the prime factors of each number. Multiply those factors both numbers have in common.

What is the meaning of highest common factor?

The greatest number that is a factor of two (or more) other numbers. When we find all the factors of two or more numbers, and some factors are the same (“common”), then the largest of those common factors is the Greatest Common Factor. Abbreviated “GCF”. Also called “Highest Common Factor”

What are the common factors of 24 and 36?

Consider the numbers 18, 24, and 36. Their common factors are 1, 2, 3, and 6. Their greatest common factor is 6. Another method of finding the greatest common factor is by using prime factorization.

Does 1 count as a common factor?

Since 1 is a factor of each number, all numbers have at least one common factor.

What is the GCF of 12 and 18?

In terms of numbers, the greatest common factor (gcf) is the largest natural number that exactly divides two or more given natural numbers. Example 1: 6 is the greatest common factor of 12 and 18.

What is the greatest common factor of 12 and 30?

Earlier we found that the Common Factors of 12 and 30 are 1, 2, 3 and 6, and so the Greatest Common Factor is 6. The Greatest Common Factor of 12 and 30 is 6.

What is the HCF of 15 and 30?

The common factors of 15 and 30 are 1, 3, 5, and 15. The greatest common factor is 15.