Readers ask: What is greatest common factor?

What is the greatest common factor mean?

The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share. For example, 12, 20, and 24 have two common factors: 2 and 4. GCF is often used to find common denominators.

How do you find the greatest common factor?

To find the GCF of two numbers:

  1. List the prime factors of each number.
  2. Multiply those factors both numbers have in common. If there are no common prime factors, the GCF is 1.

What is the GCF of 36 and 54?

1, 2, 3, 6, 9, 18, 27, and 54. Although the numbers in bold are all common factors of both 36 and 54, 18 is the greatest common factor. The second method to find the greatest common factor is to list the prime factors, then multiply the common prime factors.

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What is the greatest common factor of 12 and 18?

Example 1: 6 is the greatest common factor of 12 and 18.

What is the GCF of 18 and 24?

18 and 24 share one 2 and one 3 in common. We multiply them to get the GCF, so 2 * 3 = 6 is the GCF of 18 and 24.

What is the GCF 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 GCF of 27 and 30?

Answer: GCF of 27 and 30 is 3

GCF of 27 and 30 is the highest number that divides 27 and 30 exactly leaving the remainder 0.

What is the GCF of 27 and 63?

GCF of 27 and 63 is 9.

What is the GCF of 20 24 and 40?

The greatest common factor of 20, 24, and 40 is 4.

What is the GCF of 18 and 27?

The factors of 27 are 1, 3, 9, 27. The common factors of 18 and 27 are 1, 3 and 9. The greatest common factor of 18 and 27 is 9.

What is the GCF of 30?

The product of these factors is called the Greatest Common Factor, or GCF for short. Example: 30 = (5)(3)(2)

What is the GCF for 36 and 48?

Answer: GCF of 36 and 48 is 12.

What is the GCF of 35 and 30?

What is the Greatest Common Factor of 30 and 35? Greatest common factor (GCF) of 30 and 35 is 5. We will now calculate the prime factors of 30 and 35, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30 and 35.

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What is the HCF of 45 and 30?

Answer: HCF of 45 and 30 is 15

Highest Common Factor (HCF) of t45 and 30 is the highest possible number which divides both the numbers exactly without any remainder.

What are the common factors of 18 and 30?

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

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