Factors and Multiples

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What are factors?

Back

Factors are numbers that can be multiplied together to get another number. For example, the factors of 6 are 1, 2, 3, and 6.

Tags

CCSS.4.OA.B.4

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

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.

Tags

CCSS.4.OA.B.4

Front

What is a composite number?

Back

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

Tags

CCSS.4.OA.B.4

Front

What is the number that is neither prime nor composite?

Back

The number 1 is neither prime nor composite.

Tags

CCSS.4.OA.B.4

Front

How do you find the factors of a number?

Back

To find the factors of a number, list all the numbers that divide evenly into it. For example, the factors of 12 are 1, 2, 3, 4, 6, and 12.

Tags

CCSS.4.OA.B.4

Front

How do you find the first five multiples of a number?

Back

To find the first five multiples of a number, multiply the number by 1, 2, 3, 4, and 5. For example, the first five multiples of 4 are 4, 8, 12, 16, and 20.

Front

What is the greatest common factor (GCF)?

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The GCF is the largest number that can divide two or more numbers without leaving a remainder. For example, the GCF of 6 and 15 is 3.

Front

What is the least common multiple (LCM)?

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The LCM is the smallest number that is a multiple of two or more numbers. For example, the LCM of 3 and 4 is 12.

Front

What is an example of a prime number?

Back

An example of a prime number is 17.

Tags

CCSS.4.OA.B.4