What is the GCF and LCM of 18?

What is the GCF and LCM of 18?

When we overlap these two restrictions, we see that the only values common to both sets are 6 and 18. So our possible pairs are (6,6) , (6,18) , or (18,18) . But wait—only one of these pairs has both an LCM of 18 and a GCF of 6. That pair is (6,18) . So, this is our answer.

What are the factors of 18?

Factors of 18: 1, 2, 3, 6, 9 and 18.

What is the GCF of 18 and 20?

FAQs on GCF of 18 and 20 The GCF of 18 and 20 is 2. To calculate the greatest common factor (GCF) of 18 and 20, we need to factor each number (factors of 18 = 1, 2, 3, 6, 9, 18; factors of 20 = 1, 2, 4, 5, 10, 20) and choose the greatest factor that exactly divides both 18 and 20, i.e., 2.

What are the GCF of 18 and 21?

3
Answer: GCF of 18 and 21 is 3.

What are multiples of 18?

The list of multiples of 18 are: 18,36,54,72,90,108,126,144,162,180,198,216,234,252,270,…. Sometimes multiples are misunderstood as factors also, which is not correct. Factors of 18 consist of only those numbers which are multiplied together to get the original number.

How many factors does 18 have?

Factors of 18: 1, 2, 3, 6, 9, 18. Factors of 19: 1, 19.

What are the common multiples of 18?

The first ten multiples of 18 are 18, 36, 54, 72, 90, 108, 126, 144, 162, 180.

What is the GCF of 18 and 12?

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 GCF of 18 and 24?

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 LCM of 18?

FAQs on LCM of 18 and 24 The LCM of 18 and 24 is 72. To find the LCM (least common multiple) of 18 and 24, we need to find the multiples of 18 and 24 (multiples of 18 = 18, 36, 54, 72; multiples of 24 = 24, 48, 72, 96) and choose the smallest multiple that is exactly divisible by 18 and 24, i.e., 72.

What is the GCF of 8 and 18?

GCF of 8 and 18 by Listing Common Factors Therefore, the greatest common factor of 8 and 18 is 2.

What are the factors and multiples of 18?

Table of Factors and Multiples