REVIEW: 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 the result of multiplying a number by an integer. For example, the multiples of 3 are 3, 6, 9, 12, 15, etc.

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. For example, 19 is a prime number.

Front

What is a composite number?

Back

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

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the only even prime number?

Back

The only even prime number is 2.

Front

What is the number that is neither prime nor composite?

Back

The number 1 is neither prime nor composite.

Front

How do you find the factors of a number?

Back

To find the factors of a number, list all the 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

What is the greatest common factor (GCF)?

Back

The greatest common factor (GCF) is the largest number that divides two or more numbers without leaving a remainder. For example, the GCF of 18 and 24 is 6.

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals along its length, used to represent numbers visually.