# Readers ask: What is the greatest common factor of 20 and 12?

## What is the greatest common factor of 12?

The factors of 12 include: 1, 2, 3, 4, 6, and 12. Thus, the common factors of 16 and 12 are: 1, 2, and 4. Often in math problems, it can be desirable to find the greatest common factor of some given numbers. In this case, the greatest common factor is 4.

## What is the prime factorization of 12 and 20?

Prime Factors for 12: 2, 2, and 3. Prime Factors for 20: 2, 2, and 5.

## What is a two digit number that is a common multiple of 12 and 20?

The LCM of 12 and 20 is 60.

## How do you find the GCF on a calculator?

List the prime factors that are common to each of the original numbers. Include the highest number of occurrences of each prime factor that is common to each original number. Multiply these together to get the GCF.

## What is the GCF of 15 and 20?

Answer: GCF of 15 and 20 is 5.

## What is the GCF of 20 24 and 40?

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

## What are the factors of 20?

The factors of 20 are the numbers, which produce the result as 20 when a pair of factors are multiplied together. These factors are 1,2,4,5,10 and 20. Factor pairs of the number, that results in original number when multiplied together. To find the factors of a number, 20, we will use the factorization method.

## What is the GCF of 15 and 30?

Example: What is the greatest common factor of 15 and 30? The common factors of 15 and 30 are 1, 3, 5, and 15. The greatest common factor is 15.

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## What is the GCF of 20 and 30?

The numbers 20 and 30 have the factors 2 and 5 in common. Next, multiply the common factors to find the GCF. If there is only one common factor, there is no need to multiply. The GCF of 20 and 30 is 10.

## What is the GCF 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 is the GCF of 24 and 18?

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 LCM for 14 and 21?

Answer: LCM of 14 and 21 is 42.

## What is the GCF of 7/15 and 21?

The common factors for 7, 15, 21 7, 15, 21 are 1. The GCF (HCF) of the numerical factors 1 is 1.

## What is the GCF of 16 and 24?

Common Factors of 24 and 16: 1, 2, 8 and the greatest among them is 8.

## What is the GCF of 14 and 18?

What is the Greatest Common Factor of 14 and 18? Greatest common factor ( GCF) of 14 and 18 is 2.

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