# Quick Answer: What Is The HCF Of 18 24 And 42?

## What is the HCF of 16 and 24?

8Example 21 Consider 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 HCF of two numbers?

HCF of two numbers is the highest common number, which is available in both the numbers. … Sometimes, it is also called the greatest common factor (GCF) or greatest common divisor (GCD). For example, the HCF of 2 and 4 is 2, because 2 is the number which is common to both 2 and 4.

## What are the factors of 18?

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

## What is the GCF of 27 and 45?

9Greatest common factor (GCF) of 27 and 45 is 9.

## What is the HCF of 18 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 HCF of 18 24 and 36?

Consider the numbers 18, 24, and 36. Their greatest common factor is 6. Another method of finding the greatest common factor is by using prime factorization.

## How do you calculate HCF?

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 18 and 63?

The prime factorization of 63 is: 3 x 3 x 7. The prime factors and multiplicities 18 and 63 have in common are: 3 x 3. 3 x 3 is the gcf of 18 and 63. gcf(18,63) = 9.

## What is the HCF of 24 and 42?

6So, the highest/greatest common factor of 24 and 42 is 6 .

## 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 is the HCF of 5 and 25?

The hcf(25,35) is 5 .

## What is the GCF of 27 and 18?

Example: Find 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.