Factors

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number without leaving a remainder.

Front

List the factors of 16.

Back

The factors of 16 are 1, 2, 4, 8, and 16.

Front

Which numbers are factors of 18?

Back

The factors of 18 are 1, 2, 3, 6, 9, and 18.

Front

What is the definition of a prime factor?

Back

A prime factor is a factor that is a prime number.

Front

Identify the prime factors of 72.

Back

The prime factors of 72 are 2 and 3.

Front

What is the greatest common factor (GCF)?

Back

The GCF is the largest number that is a factor of two or more numbers.

Front

How do you find the GCF of 48 and 72?

Back

List the factors of both numbers: Factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 48; Factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72. The GCF is 24.

Front

What is a composite number?

Back

A composite number is a whole number greater than 1 that has more than two factors.

Front

Is 9 a factor of 16? Why or why not?

Back

No, 9 is not a factor of 16 because 16 cannot be divided evenly by 9.

Front

What are the factors of 51?

Back

The factors of 51 are 1, 3, 17, and 51.