Table of Contents

- 1 What is the greatest common factor of 40 40 and 20?
- 2 What is the greatest common factor of 30 20 and 10?
- 3 What is the GCF of 18 and 27?
- 4 What is the HCF of 20 30?
- 5 What is the GCF of 18 and 9?
- 6 What is the HCF of 36 and 24?
- 7 What is the greatest common factor of 40?
- 8 How do you calculate the highest common factor?

## What is the greatest common factor of 40 40 and 20?

GCF of 20 and 40 is the largest possible number that divides 20 and 40 exactly without any remainder….GCF of 20 and 40.

1. | GCF of 20 and 40 |
---|---|

2. | List of Methods |

3. | Solved Examples |

4. | FAQs |

**What are the greatest common factors of 20 and 40?**

What is the Greatest Common Factor?

- Factors for 20: 1, 2, 4, 5, 10, and 20.
- Factors for 40: 1, 2, 4, 5, 8, 10, 20, and 40.

### What is the greatest common factor of 30 20 and 10?

Therefore, the highest common factor of 10, 20 and 30 is 10.

**What is the HCF of 40?**

HCF of 40, 42 and 45 Examples 40 = 2 × 2 × 2 × 5. 42 = 2 × 3 × 7. 45 = 3 × 3 × 5.

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

9

Answer: GCF of 18 and 27 is 9.

**What is the GCF of 20 30?**

10

There are 4 common factors of 20 and 30, that are 1, 2, 10, and 5. Therefore, the greatest common factor of 20 and 30 is 10.

## What is the HCF of 20 30?

HCF of 20 and 30 by Prime Factorization As visible, 20 and 30 have common prime factors. Hence, the HCF of 20 and 30 is 2 × 5 = 10.

**What is the HCF of 40 60?**

20

GCF of 40 and 60 by Listing Common Factors There are 6 common factors of 40 and 60, that are 1, 2, 4, 5, 10, and 20. Therefore, the greatest common factor of 40 and 60 is 20.

### What is the GCF of 18 and 9?

The GCF of 9 and 18 is 9.

**What is the GCF for 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 HCF of 36 and 24?

12

Answer: HCF of 24 and 36 is 12.

**What is the GCF and lcm of 45 and 30?**

Least Common Multiple of 30 and 45 with GCF Formula. The formula of LCM is LCM (a,b) = ( a × b) / GCF (a,b). We need to calculate greatest common factor 30 and 45, than apply into the LCM equation. GCF (30,45) = 15. LCM (30,45) = ( 30 × 45) / 15. LCM (30,45) = 1350 / 15.

## What is the greatest common factor of 40?

The factors of 40 are 1, 2, 4, 5, 8, 10, 20 and 40. So, the Greatest Common Factor for these numbers is 4 because it divides all them without a remainder.

**How do you calculate LCM and GCF?**

To find LCM multiply the factors in all three sections of the Venn Diagram 3 x 2 x 2 x 2 x 2 x 2 = 96 The LCM of 12 and 32 is 96 To find GCF multiply the factors in the center of the Venn Diagram 2 x 2 = 4 The GCF of 12 and 32 is 4. 5. Let’s Try Some! Use prime factorization to find LCM and GCF of 15 and 6.

### How do you calculate the highest common factor?

To find the greatest common factor (GCF) between numbers, take each number and write it’s prime factorization. Then, identify the factors common to each number and multiply those common factors together.