# Question: What Is The HCF Of 15 And 20?

## What is the HCF of 20?

For example, find the HCF of 20 and 35.

The common factors of the given numbers are : 1,2,4,5,10,20.

The greatest among all other numbers is 20, so it shall be the HCF of both the numbers..

## What is the HCF of 10 and 30?

Greatest common factor (GCF) of 10 and 30 is 10. We will now calculate the prime factors of 10 and 30, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 10 and 30.

## What are the factors to 20?

20 is a composite number. 20 = 1 x 20, 2 x 10, or 4 x 5. Factors of 20: 1, 2, 4, 5, 10, 20. Prime factorization: 20 = 2 x 2 x 5, which can also be written 20 = 2² x 5.

## What is the HCF of 15?

Factors of 15 (Fifteen) = 1, 3, 5 and 15. Factors of 35 (Thirty five) = 1, 5, 7 and 35. Therefore, common factor of 15 (Fifteen) and 35 (Thirty five) = 1 and 5. Highest common factor (H.C.F) of 15 (Fifteen) and 35 (Thirty five) = 5.

## What are the factors of 15 and 20?

The gcf of 15 and 20 can be obtained like this: The factors of 15 are 15, 5, 3, 1. The factors of 20 are 20, 10, 5, 4, 2, 1. The common factors of 15 and 20 are 5, 1, intersecting the two sets above.

## What is the HCF of 20 and 30?

We found the factors and prime factorization of 20 and 30. The biggest common factor number is the GCF number. So the greatest common factor 20 and 30 is 10.

## What is the LCM of 20 30 and 40?

The least common multiple 120 is a product of common & odd prime factors between the integers which is divisible by each one an integer of this same group. The step by step work for LCM of 20, 30 and 40 may useful to understand how to find LCM for two or three numbers.

## What is the common factor of 15 and 25?

The Greatest Common Factor of 15and25 is 5.

## What is the GCF of 15 and 9?

Greatest common factor (GCF) of 9 and 15 is 3.

## What is the HCF of 15 and 30?

The common factors of 15 and 30 are 1, 3, 5, and 15. The greatest common factor is 15.

## What is the HCF of 5 and 25?

The hcf(25,35) is 5 .

## What is the HCF of 16 and 24?

8Consider the highest common factor of 16 and 24 again. The common factors are 1, 2, 4 and 8. So, the highest common factor is 8.

## What is the HCF of 5 10 and 15?

Factors of 15 = 1, 3, 5 and 15. Factors of 10 = 1, 2, 5 and 10. Therefore, common factor of 15 and 10 = 1 and 5. Highest common factor (H.C.F) of 15 and 10 = 5.

## What is the HCF of 5 and 15?

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

## What is the HCF of 12?

HCF Example 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 HCF of 15 and 40?

The factors of 40 are 40, 20, 10, 8, 5, 4, 2, 1. The common factors of 15 and 40 are 5, 1, intersecting the two sets above. In the intersection factors of 15 ∩ factors of 40 the greatest element is 5. Therefore, the greatest common factor of 15 and 40 is 5.

## 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 20 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.