Factors and Multiples

Front

What are multiples of a number?

Back

Multiples of a number are the products of that number and any integer. For example, the multiples of 7 are 7, 14, 21, 28, etc.

Front

Identify the first four multiples of 7.

Back

7, 14, 21, 28

Front

Which of the following is a composite number: 7, 11, 12, 13?

Back

12 is a composite number because it has factors other than 1 and itself.

Front

What are the factors of a number?

Back

Factors of a number are integers that can be multiplied together to produce that number. For example, the factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24.

Front

List all factors of 24.

Back

1, 2, 3, 4, 6, 8, 12, 24

Front

What is the difference between prime and composite numbers?

Back

A prime number has exactly two distinct positive divisors: 1 and itself. A composite number has more than two positive divisors.

Front

Identify the first four multiples of 8.

Back

8, 16, 24, 32

Front

Which numbers are factors of 20?

Back

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

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) of two or more numbers is the smallest multiple that is exactly divisible by each of the numbers.

Front

How do you find the greatest common factor (GCF)?

Back

The greatest common factor (GCF) is found by identifying the largest factor that two or more numbers share.