How do you find the GCF of two numbers?

Publish date: 2023-06-15

Here’s how to find the GCF of a set of numbers using prime factorization:

List the prime factors of each number.

Circle every common prime factor — that is, every prime factor that’s a factor of every number in the set.

Multiply all the circled numbers. The result is the GCF.

Also, What is the GCF of 24 and 32?

Answer: GCF of 24 and 32 is 8.

Hereof, What is the GCF 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. The greatest common factor of 18 and 27 is 9.

Also to know What is the GCF of 18 and 24? Correct answer:

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 36 and 54?

GCF of 36 and 54 by Listing Common Factors

There are 6 common factors of 36 and 54, that are 1, 2, 3, 6, 9, and 18. Therefore, the greatest common factor of 36 and 54 is 18.

21 Related Questions Answers Found

What is the GCF of 24 32 and 36?

We found the factors 16,24,32,36 . The biggest common factor number is the GCF number. So the greatest common factor 16,24,32,36 is 4.

What is the HCF of 12 and 15?

As visible, 12 and 15 have only one common prime factor i.e. 3. Hence, the HCF of 12 and 15 is 3.

What is the GCF of 18 and 27?

GCF of 18 and 27 by Listing Common Factors

There are 3 common factors of 18 and 27, that are 1, 3, and 9. Therefore, the greatest common factor of 18 and 27 is 9.

What is the HCF of 18 and 30?

GCF of 18 and 30 by Listing Common Factors

Therefore, the greatest common factor of 18 and 30 is 6.

What is the GCF of 18 and 2?

Greatest common factor (GCF) of 2 and 18 is 2.

What’s the GCF of 18 and 36?

GCF of 18 and 36 by Prime Factorization

As visible, 18 and 36 have common prime factors. Hence, the GCF of 18 and 36 is 2 × 3 × 3 = 18.

What is the GCF of 24 18 and 30?

As you can see when you list out the factors of each number, 6 is the greatest number that 18, 24, and 30 divides into.

What is the GCF of 24 36 and 18?

The greatest common factor of 18, 24, and 36 is 6.

What is the GCF of 36 54 and 135?

We found the factors of 36, 54, 135 . The biggest common factor number is the GCF number. So the Greatest Common Factor 36, 54, 135 is 9.

What is the GCF of 24 and 60?

Answer: GCF of 24 and 60 is 12.

What is the GCF of 36 and 60?

Answer: GCF of 36 and 60 is 12.

What is the GCF of 24 and 32 and 48?

As you can see when you list out the factors of each number, 8 is the greatest number that 48, 48, 24, and 32 divides into.

What is the GCF of 36 and 27?

Answer: GCF of 27 and 36 is 9.

What is the GCF of 16 and 32?

Answer: GCF of 16 and 32 is 16.

What is the HCF of 12 18 and 24?

The HCF of 12, 18, and 24 is 6. ∴ The highest number that divides 12, 18, and 24 is 6.

What is the HCF of 16 and 24?

The HCF of 16 and 24 is 8. To calculate the Highest common factor (HCF) of 16 and 24, we need to factor each number (factors of 16 = 1, 2, 4, 8, 16; factors of 24 = 1, 2, 3, 4, 6, 8, 12, 24) and choose the highest factor that exactly divides both 16 and 24, i.e., 8.

What is the GCF of 18 and 30?