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# What is the GCF and LCM of 18 and 27?

## What is the GCF and LCM of 18 and 27?

LCM of 18 and 27 by Prime Factorization Prime factorization of 18 and 27 is (2 × 3 × 3) = 21 × 32 and (3 × 3 × 3) = 33 respectively. LCM of 18 and 27 can be obtained by multiplying prime factors raised to their respective highest power, i.e. 21 × 33 = 54. Hence, the LCM of 18 and 27 by prime factorization is 54.

### What is the GCF 24 and 18?

6
The greatest common factor is the greatest factor that divides both numbers. To find the greatest common factor, first list the prime factors of each number. 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 14 and 21?

7
Answer: GCF of 14 and 21 is 7.

What is the GCF of 6 and 18 and 27?

The common factors for 6,18,27 6 , 18 , 27 are 1,3 . The GCF (HCF) of the numerical factors 1,3 is 3 .

What are the factors of 27?

Therefore the total number of factors that 27 has is 4 and they are 1, 3, 9, and 27.

## What is the highest factor of 18?

Factors of 18 are the list of integers that can be evenly divided into 18. It has a total of 6 factors of which 18 is the biggest factor and the positive factors of 18 are 1, 2, 3, 6, 9, and 18. The Pair Factors of 18 are (1, 18), (2, 9), and (3, 6) and its Prime Factors are 1, 2, 3, 6, 9, 18.

### What GCF 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.

#### How do I find GCF?

To find the GCF of a set of numbers, list all the factors of each number. The greatest factor appearing on every list is the GCF. For example, to find the GCF of 6 and 15, first list all the factors of each number. Because 3 is the greatest factor that appears on both lists, 3 is the GCF of 6 and 15.

What is the GCF of 28?

GCF of 28 and 32 is the largest possible number that divides 28 and 32 exactly without any remainder. The factors of 28 and 32 are 1, 2, 4, 7, 14, 28 and 1, 2, 4, 8, 16, 32 respectively….GCF of 28 and 32.

1. GCF of 28 and 32
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What is the GCF of 30 and 18?

The GCF of 18 and 30 is 6. To calculate the greatest common factor (GCF) of 18 and 30, we need to factor each number (factors of 18 = 1, 2, 3, 6, 9, 18; factors of 30 = 1, 2, 3, 5, 6, 10, 15, 30) and choose the greatest factor that exactly divides both 18 and 30, i.e., 6.

## How do you do GCF?

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

1. List the prime factors of each number.
2. Circle every common prime factor — that is, every prime factor that’s a factor of every number in the set.
3. Multiply all the circled numbers. The result is the GCF.