When a

**number**has more than two**factors**it is called a composite**number**. Here are the first few**prime numbers**: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, etc.Keeping this in view, what are the factors of 100?

The

**factors of 100**. Answer : 1,2,4,5,10,20,25,50,100, Related Links : Is**100**a rational number?How many factors are in 100?

Factors

NUMBER | FACTORS |
---|---|

94 | 2, 47 |

96 | 2, 3, 4, 6, 8, 12, 16, 24, 32, 48 |

98 | 2, 7, 14, 49 |

100 | 2, 4, 5, 10, 20, 25, 50 |

1

## What are the prime factors of 21?

**21**is a composite number.

**21**= 1 x

**21**or 3 x 7.

**Factors of 21**: 1, 3, 7,

**21**.

**Prime factorization**:

**21**= 3 x 7.

2

## What are the prime numbers of the factors of 100?

**Here is the basic factoring information for the number 100.**

- 100 is a composite number.
- Prime factorization: 100 = 2 × 2 × 5 × 5, which can be written 100 = 2²× 5²
- The exponents in the prime factorization are 2 and 2.
- Factors of 100: 1, 2, 4, 5, 10, 20, 25, 50, 100.

3

## What are the prime factors of 125?

**125**is a composite number.

**125**= 1 x

**125**or 5 x 25.

**Factors of 125**: 1, 5, 25,

**125**.

**Prime factorization**:

**125**= 5 x 5 x 5, which can also be written

**125**= 5³.

4

## What are the prime factors of 110?

**110**is a composite number.

**110**= 1 x

**110**, 2 x 55, 5 x 22, or 10 x 11.

**Factors of 110**: 1, 2, 5, 10, 11, 22, 55,

**110**.

**Prime factorization**:

**110**= 2 x 5 x 11.

5

## What are the prime factors of 18?

**18**= 1 x

**18**, 2 x 9, or 3 x 6.

**Factors of 18**: 1, 2, 3, 6, 9,

**18**.

**Prime factorization**:

**18**= 2 x 3 x 3, which can also be written

**18**= 2 x 3². When

**18**is a clue in the FIND THE

**FACTORS**puzzles, use either 2 x 9 or 3 x 6.

6

## What are the prime factors of 20?

**20**is a composite number.

**20**= 1 x

**20**, 2 x 10, or 4 x 5.

**Factors of 20**: 1, 2, 4, 5, 10,

**20**.

**Prime factorization**:

**20**= 2 x 2 x 5, which can also be written

**20**= 2² x 5.

7

## What are the prime factors of 72?

The number one only has one

**factor**and is considered to be neither**prime**nor composite. When a composite number is written as a product of all of its**prime factors**, we have the**prime factorization**of the number. For example, the number**72**can be written as a product of primes as:**72**= .8

## How many prime numbers are there from 1 to 100?

There are

**25 prime numbers**between 1 and 100. They are 2, 3, 5, 7, 11,**13**, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and**97**.9

## What are the prime factors of 120?

**120**is a composite number.

**120**= 1 x

**120**, 2 x 60, 3 x 40, 4 x 30, 5 x 24, 6 x 20, 8 x 15, or 10 x 12.

**Factors of 120**: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60,

**120**.

**Prime factorization**:

**120**= 2 x 2 x 2 x 3 x 5, which can also be written

**120**= 2³ x 3 x 5.

10

## What are the prime factors of 81?

**81**is a composite number and is 9 squared.

**81**= 1 x

**81**, 3 x 27, or 9 x 9.

**Factors of 81**: 1, 3, 9, 27,

**81**.

**Prime factorization**:

**81**= 3 x 3 x 3 x 3 which can also be written 34.

11

## Is the number 121 prime?

To be

**121 a prime number**, it would have been required that**121**has only two divisors, i.e., itself and 1. However,**121**is a semiprime (also called biprime or 2-almost-**prime**), because it is the product of a two non-necessarily distinct**prime numbers**. Indeed,**121**= 11 x 11, where 11 is a**prime number**.12

## What are the prime factors of 32?

**32**is a composite number.

**32**= 1 x

**32**, 2 x 16, or 4 x 8.

**Factors of 32**: 1, 2, 4, 8, 16,

**32**.

**Prime factorization**:

**32**= 2 x 2 x 2 x 2 x 2, which can also be written

**32**= 25.

13

## Is the number 103 a prime number?

**103**is the 27th

**prime number**. The previous

**prime**is 101, making them both twin primes. It is also a happy

**number**.

14

## What are the prime factors of 50?

**50**is a composite number.

**50**= 1 x

**50**, 2 x 25, or 5 x 10.

**Factors of 50**: 1, 2, 5, 10, 25,

**50**.

**Prime factorization**:

**50**= 2 x 5 x 5, which can also be written 2 x 5².

15

## What is a prime number?

A

**prime number is**a whole**number**greater than 1 whose only factors are 1 and itself. A factor**is**a whole**numbers**that can be divided evenly into another**number**. The first few**prime numbers**are 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29.**Numbers**that have more than two factors are called composite**numbers**.16

## What are the prime factors of 64?

**64**is a composite number, and it is 8 squared.

**64**= 1 x

**64**, 2 x 32, 4 x 16, or 8 x 8.

**Factors of 64**: 1, 2, 4, 8, 16, 32,

**64**.

**Prime factorization**:

**64**= 2 x 2 x 2 x 2 x 2 x 2, which can also be written

**64**= 26.

17

## What are all the prime numbers between 1 and 1000?

Prime Numbers between 1 and 1,000

2 | 3 | |
---|---|---|

71 | 73 | 79 |

113 | 127 | 131 |

173 | 179 | 181 |

229 | 233 | 239 |

18

## Is the number 49 a prime number?

To be 49 a prime number, it would have been required that 49 has only two divisors, i.e., itself and 1. However, 49 is a semiprime (also called biprime or 2-almost-prime), because it is the product of a two non-necessarily distinct prime numbers. Indeed, 49 =

**7**x**7**, where**7**is a prime number.