Factors and Multiples

Front

What are factors?

Back

Factors are numbers that can be multiplied together to get another number. For example, the factors of 20 are 1, 2, 4, 5, 10, and 20.

Front

What are multiples?

Back

Multiples are the result of multiplying a number by an integer. For example, the first five multiples of 3 are 3, 6, 9, 12, and 15.

Front

List the first 5 multiples of 8.

Back

8, 16, 24, 32, 40.

Front

Which are factors of 20?

Back

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

Front

All the factors of 15 are:

Back

1, 3, 5, 15.

Front

What are the next three multiples of 6 after 6, 12, 18?

Back

24, 30, 36.

Front

Which is a factor pair of 24?

Back

The factor pair of 24 is 2 and 12.

Front

What is the greatest common factor (GCF) of 12 and 16?

Back

The GCF of 12 and 16 is 4.

Front

What is a prime number?

Back

A prime number is a number greater than 1 that has no positive divisors other than 1 and itself. For example, 2, 3, 5, and 7 are prime numbers.

Front

What is a composite number?

Back

A composite number is a number that has more than two factors. For example, 4, 6, 8, and 9 are composite numbers.