Table of Contents

- 1 What are factors of 20 45?
- 2 What is the greatest GCF of 45?
- 3 What is the greatest common factor for 42 and 49?
- 4 What is a factor of 45?
- 5 What is the greatest common factor of 20?
- 6 What are the common factors of 20 45 and 60?
- 7 What is the greatest common factor of 42 and 108?
- 8 What is the greatest common factor of and 42?

## What are factors of 20 45?

Factors for 20: 1, 2, 4, 5, 10, and 20. Factors for 45: 1, 3, 5, 9, 15, and 45.

## What is the greatest GCF of 45?

What is the GCF of 45 and 45?

- Find the prime factorization of 45. 45 = 3 × 3 × 5.
- Find the prime factorization of 45. 45 = 3 × 3 × 5.
- Therefore, GCF = 3 × 3 × 5.
- GCF = 45.

**What is the greatest common factor of 32 and 90?**

The GCF of 32 and 90 is 2.

### What is the greatest common factor for 42 and 49?

The GCF of 42 and 49 is 7.

### What is a factor of 45?

All the factors of 45 are 1, 3, 5, 9, 15, and 45. Prime factorization of 45 is 45 = 32 × 5.

**What are the factors of 20?**

Factors of 20

- Factors of 20: 1, 2, 4, 5, 10 and 20.
- Negative Factors of 20: -1, -2, -4, -5, -10 and -20.
- Prime Factors of 20: 2, 5.
- Prime Factorization of 20: 2 × 2 × 5 = 22 × 5.
- Sum of Factors of 20: 42.

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

1

The prime factors of 20 are 2 x 2 x 5. 9 and 20 have no prime factors in common. The greatest common factor is 1.

#### What are the common factors of 20 45 and 60?

For 20, 45, 60, and 65 those factors look like this:

- Factors for 20: 1, 2, 4, 5, 10, and 20.
- Factors for 45: 1, 3, 5, 9, 15, and 45.
- Factors for 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.
- Factors for 65: 1, 5, 13, and 65.

**What is the GCF of 16 and 45?**

The GCF of 16 and 45 is 1.

## What is the greatest common factor of 42 and 108?

The GCF of 42 and 108 is 6.

## What is the greatest common factor of and 42?

GCF of 42 and 63 is the largest possible number that divides 42 and 63 exactly without any remainder. The factors of 42 and 63 are 1, 2, 3, 6, 7, 14, 21, 42 and 1, 3, 7, 9, 21, 63 respectively….GCF of 42 and 63.

1. | GCF of 42 and 63 |
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2. | List of Methods |

3. | Solved Examples |

4. | FAQs |

**What is the greatest common factor of 18 and 36?**

18

Answer: GCF of 18 and 36 is 18.