# What are the multiples and factors of 21?

## What are the multiples and factors of 21?

Table of Factors and Multiples

Factors Multiples
1, 3, 7, 21 21 42
1, 2, 11, 22 22 44
1, 23 23 46
1, 2, 3, 4, 6, 8, 12, 24 24 48

How many factors does 23 have?

2 factors
The factors of 23 are 1, 23. Therefore, 23 has 2 factors.

What are the factors of30?

The factors of 30 are 1, 2, 3, 5, 6, 10, 15, 30 and its negative factors are -1, -2, -3, -5, -6, -10, -15, -30.

### What are the common factors of 7 and 21?

There are 2 common factors of 7 and 21, that are 1 and 7. Therefore, the greatest common factor of 7 and 21 is 7.

What is the common multiples of 21?

Solution: The first 10 multiples of 21 are, 21, 42, 63, 84, 105, 126, 147, 168, 189 and 210.

What are the first 10 multiples of 23?

Let’s list the first 10 multiples of 23….

Multiples of 23 from 11-20
23 × 11 = 253 23 × 16 = 368
23 × 14 = 322 23 × 19 = 437
23 × 15 = 345 23 × 20 = 460

## What can go into 23?

The factors of 23 are 1 and 23. Since 23 is a prime number, therefore, it has only two factors.

What are factors of 18?

Factors of a number are the numbers that divide the given number exactly without any remainder. According to the definition of factors, the factors of 18 are 1, 2, 3, 6, 9, and 18.

What are 4 factors of 30?

The factors of 30 are 1, 2, 3, 5, 6, 10, 15 and 30.

### What is the GCF of 7 24 and 21?

As you can see when you list out the factors of each number, 1 is the greatest number that 7, 21, and 24 divides into.

What is the GCF of 18 and 27?

9
Answer: GCF of 18 and 27 is 9.

What are the 10 multiples of 21?