 # Question: What Is The Highest Common Factor Of 12 15 And 18?

## What is the HCF of 12?

Find the highest common factor (H.C.F) of 12 and 18.

Factors of 12 = 1, 2, 3, 4, 6 and 12.

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

Therefore, common factor of 12 and 18 = 1, 2, 3 and 6.

Highest common factor (H.C.F) of 12 and 18 = 6 [since 6 is the highest common factor]..

## What are the factors of 15 18 and 12?

The LCM of 12,15,18 12 , 15 , 18 is the result of multiplying all prime factors the greatest number of times they occur in either number. The LCM of 12,15,18 12 , 15 , 18 is 2⋅2⋅3⋅3⋅5=180 2 ⋅ 2 ⋅ 3 ⋅ 3 ⋅ 5 = 180 .

## How is HCF calculated?

The highest common factor is found by multiplying all the factors which appear in both lists: So the HCF of 60 and 72 is 2 × 2 × 3 which is 12. The lowest common multiple is found by multiplying all the factors which appear in either list: So the LCM of 60 and 72 is 2 × 2 × 2 × 3 × 3 × 5 which is 360.

## 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 HCF of 18 and 24?

We found the factors and prime factorization of 18 and 24. The biggest common factor number is the GCF number. So the greatest common factor 18 and 24 is 6.

## What is the GCF of 15 and 18?

The factors of 18 are 18, 9, 6, 3, 2, 1. The common factors of 15 and 18 are 3, 1, intersecting the two sets above. In the intersection factors of 15 ∩ factors of 18 the greatest element is 3. Therefore, the greatest common factor of 15 and 18 is 3.

## What is the GCF of 15 and 25?

5The Greatest Common Factor of 15and25 is 5. (the number itself and 1 do not count). The factor(s) of 25 is 5 .

## How many common factors do 12 and 18 have?

6The biggest common factor number is the GCF number. So the greatest common factor 12 and 18 is 6.

## What is the GCF of 15 and 20?

Greatest common factor (GCF) of 15 and 20 is 5.

## What is the HCF of 16 and 18?

Greatest common factor (GCF) of 18 and 16 is 2.

## What is the HCF of 16 and 24?

The greatest common factor of two (or more) numbers is the product of all the prime factors the numbers have in common. There are three 2’s common to both numbers, so 2*2*2 = 8 is the “greatest common factor” (GCF) of 16 and 24.

## What is the GCF of 2 and 10?

We found the factors and prime factorization of 2 and 10. The biggest common factor number is the GCF number. So the greatest common factor 2 and 10 is 2.

## What is the highest common factor of 14 and 21?

We found the factors and prime factorization of 14 and 21. The biggest common factor number is the GCF number. So the greatest common factor 14 and 21 is 7.

## What is the HCF of 16?

The factors for 16 are 1, 2, 4, 8, 16. The two numbers (12 and 16) share common factors (1, 2, 4). The greatest of these is 4 and that is the greatest common factor.

## What is the LCM of 15 18 and 24?

Here the numbers mentioned are 15, 18 and 24. Let us factorise each of them. In order to obtain the LCM of the above mentioned numbers, we multiply all the prime factors in their highest power of all the numbers. Hence, the LCM here is 3^2*2^3*5 = 360.

## What are the common factors 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 16 and 20?

We may write the solution symbolically as GCF(20, 16) = 4. This says “the greatest common factor of 20 and 16 is 4.” The number k in the definition corresponds to the 4 in the problem. It is the factor of the greatest value shared by both n and m.

## What is the highest common factor of 12 15?

The factors of 12 are : 1, 2, 3, 4, 6, 12. The factors of 15 are : 1, 3, 5, 15. 1 and 3 are the only common factors (numbers which are factors of both 12 and 15). Therefore, the highest common factor of 12 and 15 is 3.

## What is the GCF of 7 and 10?

The prime factors and multiplicities 7 and 10 have in common are: 1. 1 is the gcf of 7 and 10. gcf(7,10) = 1.

## What is the GCF of 18 and 27?

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.

## What are the factors of 18?

Table of Factors and MultiplesFactorsMultiples1, 2, 4, 8, 16161121, 17171191, 2, 3, 6, 9, 18181261, 191913341 more rows