Let us know about Factors of 20.

Table of Factors and Multiples

factor | multiples | |
---|---|---|

1, 3, 9 | 9 | 18 |

1, 2, 5, 10 | 10 | 20 |

1, 11 | 11 | 22 |

1, 2, 3 4, 6, 12 | 12 | 24 |

Similarly, what are all the multiples of20? Multiples of20 are**20, 40, 60 80, 100, 120, 140** and so on.

What are multiples of 30? Multiples of 30 are **30, 60, 90, 120, 150, 180, 210, 240, 270, 300** , etc.

How do you find a factor? **How to find the number of factors?**

- Find its prime factorization, that is, express it as the product of primes.
- Write the prime factorization in exponentiation form.
- Add 1 to each exponent.
- Multiply all the resulting numbers.
- This product will give the number of factors of the given number.

Second, is 30 a factor or a multiple of 10? The multiples of **10** are 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, etc. These multiples are obtained when we multiply 10 by 1, 2, 3, …, 10 respectively.

…

Multiples of 10 tables.

multiplication of 10 with numbers | 10. multiples of |
---|---|

10 × 2 | 20 |

10 × 3 | 30 |

10 × 4 | 40 |

10 × 5 | 50 |

**How many factors does20 have?**

The factors of 20 are **1, 2, 4, 5, 10 and 20** .

So what is a multiple of 30? Multiples of 30 are **30, 60, 90, 120, 150, 180, 210, 240, 270, 300** , etc.

What are the factors of 32? **factors of 32**

- 32: Factors 1, 2, 4, 8, 16 and 32.
- 32: Negative factors of -1, -2, -4, -8, -16 and -32.
- prime factors of 32:2
- Prime factors of 32: 2 × 2 × 2 × 2 × 2 = 2
^{5} - The sum of the factors of 32:63.

**What is the LCM of20 and 30?**

Answer: The LCM of20 and 30 is **60** .

Which is the 30th nonzero multiple of 30? Answer: **1,2,3,5,6,15** . These are non-zero multiples of 30.

What is the first factor?

**What is a factor tree?**

Factor trees are **a way of expressing the** factors of a number, especially the prime factors of a number. Each branch of the tree is divided into factors. Once the factor at the end of the branch is a prime number, there are only two factors and one so the branch is closed and we circle the number.

What are 24 factors?

Therefore, the factors of 24 are 24 = **1, 2, 3, 4, 6, 12 and 24** .

What are the factors of 30 and multiples of 3? Example: 30 = 3 × 10, so **3 and 10** are factors of 30 and 30 is a multiple of 3 and 10.

What are the factors of 21? **factors of 21**

- 21: Factors 1, 3, 7 and 21.
- Negative factors of 21: -1, -3, -7 and -21.
- 21: 3, prime factors of 7
- Prime factorization of 21: 3 × 7 = 3 × 7.
- The sum of the factors of 21:32.

**How many factors does 24 have?**

The factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24. Therefore, 24 has **8 factors** .

What is the smallest factor of 20? Answer: Factors of 20 are the numbers which when a pair of factors are multiplied together gives the result of 20. These factors are **1,2,4,5,10** and 20.

Which of the following is not a factor of 20?

20! In order not to be a factor of , a number must not lie between 1 and 20 and should be called 20! Cannot be calculated as a product of numbers contained in That means 29, which is prime and greater than 20 and 121 which is 11*11 and in 20! We just have n’t a factor of **11 20! **Answer: D and H.

What are the multiples of 20 and 30? **To calculate the LCM of 20 and 30 by listing the common multiples, we can follow the steps below:**

- Step 1: List some multiples of 20 (20, 40, 60, 80, …) and 30 (30, 60, 90, 120, 150, 180, …).
- Step 2: The common multiple of the multiples of 20 and 30 is 60, 120, . , ,

**What are the common factors for 18 and 30?**

4 and 18 have 30 common factors, which are **1, 2, 3, and 6** . Therefore, the greatest common factor of 18 and 30 is 6.

How many factors does 21 have? The factors of 21 are integers that can be divided equally into 21. Its total is **4 factors** of which 21 is the greatest factor and 21 is the positive factor 1, 3, 7, and 21. The sum of all the factors of 21 is 32 and its factors in pairs are (1, 21) and (3, 7).

How many factors does 25 have?

Solution: The factors of 25 are **1, 5, and 25** .

How many factors does 24 make? The factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24. Therefore, 24 has **8 factors** .