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 18 are 1, 2, 3, 6, 9, and 18.

Front

What are multiples?

Back

Multiples are numbers that can be divided by a certain number without leaving a remainder. For example, the multiples of 5 are 5, 10, 15, 20, etc.

Front

What is the greatest common factor (GCF)?

Back

The GCF is the largest number that is a factor of two or more numbers. For example, the GCF of 18 and 24 is 6.

Front

What is the least common multiple (LCM)?

Back

The LCM is the smallest number that is a multiple of two or more numbers. For example, the LCM of 5 and 6 is 30.

Front

List the factors of 24.

Back

The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24.

Front

List the multiples of 3 up to 30.

Back

The multiples of 3 up to 30 are 3, 6, 9, 12, 15, 18, 21, 24, 27, and 30.

Front

What is a composite number?

Back

A composite number is a number that has more than two factors. For example, 36 is composite because it has factors 1, 2, 3, 4, 6, 9, 12, 18, and 36.

Front

What is a prime number?

Back

A prime number is a number that has exactly two factors: 1 and itself. For example, 11 is prime because its only factors are 1 and 11.

Front

What are the factors of 48?

Back

The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, and 48.

Front

What is the relationship between factors and multiples?

Back

Factors are numbers that divide another number evenly, while multiples are the result of multiplying a number by an integer.