Table of Contents

- 1 What are the common factors of 30?
- 2 What is the GCF of 30 and 81?
- 3 What are the factors of 30 and 20?
- 4 How do you find the factor of 30?
- 5 What is the least common multiple of 36 and 12?
- 6 What is the least common multiple of 90 and 20?
- 7 What is the HCF of 30?
- 8 What is a factor tree for 30?
- 9 Which is the largest common factor of 27, 54 and 81?
- 10 What are the common factors of a number?
- 11 Which is the most common factor in GCF?

## What are the common factors of 30?

The sum of all factors of 30 is 72. Its Prime Factors are 1, 2, 3, 5, 6, 10, 15, 30 and (1, 30), (2, 15), (3, 10) and (5, 6) are Pair Factors….Sum of Factors of 30: 72.

1. | What are Factors of 30? |
---|---|

2. | How to Calculate Factors of 30? |

3. | Factors of 30 by Prime Factorization |

4. | Factors of 30 in Pairs |

## What is the GCF of 30 and 81?

The GCF of 30 and 81 is 3.

**What is the GCF of 30 and 15?**

15

The GCF of 15 and 30 is 15.

### What are the factors of 30 and 20?

The factors of 20 that are also factors of 30, or the common factors of 20 and 30, are 1, 2, 5, and 10.

### How do you find the factor of 30?

Factor Pairs of 30

- 1 x 30 = 30.
- 2 x 15 = 30.
- 3 x 10 = 30.
- 5 x 6 = 30.

**What are the multiple of 30?**

Multiples of 30: 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330… Common multiples of 25 and 30 include 150 and 300. The lowest common multiple or least common multiple is the lowest multiple two numbers have in common.

#### What is the least common multiple of 36 and 12?

36

Answer: LCM of 12 and 36 is 36.

#### What is the least common multiple of 90 and 20?

180

Calculate the LCM The least common multiple of 90 and 20 is 180.

**What is the greatest common factor of 3 and 30?**

3

The GCF of 3 and 30 is 3.

## What is the HCF of 30?

Factors of 30 (Thirty) = 1, 2, 3, 5, 6, 10, 15 and 30. Factors of 24 (Twenty four) = 1, 2, 3, 4, 6, 8, 12 and 24. Therefore, common factor of 30 (Thirty) and 24 (Twenty four = 1, 2, 3, and 6. Highest common factor (H.C.F) of 30 (Thirty) and 24 (Twenty four = 6.

## What is a factor tree for 30?

The number 30 can be written in prime factorization as 2 x 3 x 5. All of the factors are prime numbers. Using exponential form, 30 = 213151, indicating that there is one 2, one 3 and one 5 multilplied together to get the result of 30.

**What is the multiples of 30?**

### Which is the largest common factor of 27, 54 and 81?

81. 1, 3, 9, 27, 81. Each of the numbers can be divided by 1, 3, 9, and 27, so you can say that these numbers are common factors of the set of numbers 27, 54, and 81. The largest of the common factors is 27, so you can say that 27 is the greatest common factor of 27, 54, and 81.

### What are the common factors of a number?

Common factors are factors (divisors) that are in common among a set of numbers. Consider the factors of 27, 54, and 81: Number. Factors. 27. 1, 3, 9, 27. 54. 1, 2, 3, 6, 9, 18, 27, 54. 81.

**How to find the greatest common factor of 3 numbers?**

In other words, the GCF of 3 or more numbers can be found by finding the GCF of 2 numbers and using the result along with the next number to find the GCF and so on. So, the greatest common factor of 120 and 50 is 10. Now let’s find the GCF of our third value, 20, and our result, 10. GCF (20,10)

#### Which is the most common factor in GCF?

The factors of 16 are: 1, 2, 4, 8, 16 The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24 The factors of 64 are: 1, 2, 4, 8, 16, 32, 64 The factors of 136 are: 1, 2, 4, 8, 17, 34, 68, 136 The common factors are: 1, 2, 4, 8 The Greatest Common Factor: GCF = 8