The

**greatest common divisor**of two integers is the largest integer that is a divisor of both. For example,**gcd**(14, 6) = 2, and the**gcd**(-10, 15) = 5. The**greatest common divisor**is**always positive**(why?). The primes common to both 396 and 120 are 2, 2, 3.Regarding this, what does GCD mean?

greatest common divisor

1

## What are all the factors of 5?

Table of Factors and Multiples

Factors | Multiples | |
---|---|---|

1, 5 | 5 | 45 |

1, 2, 3, 6 | 6 | 54 |

1, 7 | 7 | 63 |

1, 2, 4, 8 | 8 | 72 |

2

## What are the factors of the number?

The factors of a number are any numbers that divide into it exactly. This includes 1 and the number itself. For example, the factors of

**6**are 1,**2**,**3**and**6**. The factors of**8**are 1,**2**,**4**and**8**.3

## What is the number with the most factors under 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 |

4

## What are the factors of 26?

**26**is a composite number.

**26**= 1 x

**26**or 2 x 13.

**Factors**of

**26**: 1, 2, 13,

**26**. Prime factorization:

**26**= 2 x 13.

5

## What are the multiples of 26?

The multiples of 26. Answer : 26,52,78,104,130,156,182,208,234,260,286,312,338,364,390,416,442,468,494,520,546,572,598,624,650,676,702,728,754,780,806,832,858,884,910,936,962,988,1014,1040,1066,1092,1118,1144,1170,1196,1222,1248,1274, Related Links : What are the

**factors**of 26?6

## What are the prime factors of 26?

If we divide by 2 , we find

**26**2=13 . As 13 is a**prime**number, there are no further**prime factors of 26**, and so the**prime factorization of 26**is 2×13 .7

## What are the prime factors of 16?

**16**is a composite number, and it is 4 squared.

**16**= 1 x

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

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

**16**.

**Prime factorization**:

**16**= 2 x 2 x 2 x 2, which can also be written

**16**= 24. Since √

**16**= 4, a whole number,

**16**is a perfect square.

8

## 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.

9

## What are the prime factors of 71?

Factoring Prime Factors of 71. 71 divided by 1, 71, gives no remainder. They are integers and

**prime numbers**of 71, they are also called composite number. Prime number are numbers that can divide without remainder, This means that 71 is divisible by 1, 71, numbers.10

## What are the prime factors of 66?

**66**is a composite number.

**66**= 1 x

**66**, 2 x 33, 3 x 22, or 6 x 11.

**Factors of 66**: 1, 2, 3, 6, 11, 22, 33,

**66**.

**Prime factorization**:

**66**= 2 x 3 x 11.

11

## What are the prime factors of 124?

**124**is a composite number.

**124**= 1 x

**124**, 2 x 62, or 4 x 31.

**Factors of 124**: 1, 2, 4, 31, 62,

**124**.

**Prime factorization**:

**124**= 2 x 2 x 31, which can also be written

**124**= 2² x 31.

12

## What is the prime factors of 98?

The prime factorization of a number is a factorization of that number into all of its prime factors. The prime factorization of 98 is 2 × 7 × 7. Notice that 2 and 7 are

**prime numbers**, and each of them divide into 98 evenly, so they are factors of 98.13

## What are the prime factors of 99?

**99**is a composite number.

**99**= 1 x

**99**, 3 x 33, or 9 x 11.

**Factors of 99**: 1, 3, 9, 11, 33,

**99**.

**Prime factorization**:

**99**= 3 x 3 x 11, which can also be written

**99**= 3² x 11.

14

## What are the prime 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.

15

## 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**= .16

## 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.

17

## What are the factors of 18?

Factors of 18: The square root of 18 is 4.2426, rounded down to the closest whole number is 4. Testing the integer values 1 through 4 for division into 18 with a 0 remainder we get these

**factor pairs**: (1 and 18), (2 and 9), (3 and 6). The factors of 18 are 1, 2, 3, 6, 9, 18.18

## 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.

19

## What are the prime factors of 60?

Use a

**factor tree**to express 60 as a product of prime factors. So the prime factorization of 60 is 2 × 2 × 3 × 5, which can be written as 2^{2}× 3 × 5. The actual prime factors of 60 are 2, 3, and 5.20

## What are the prime factors?

A

**factor**that is a**prime**number. In other words: any of the**prime**numbers that can be multiplied to give the original number. Example: The**prime**factors of 15 are 3 and 5 (because 3×5=15, and 3 and 5 are**prime**numbers). See:**Prime**Number.**Prime**Factorization.