Factors and Multiples

What are the factors of 10?

• 1, 2, 3, 4

• 1, 2, 5, 10

• 1, 5, 10, 15

• 2, 5, 10, 20

Which of the following is a prime number: 35, 60, 24, 13?

• 35

• 60

• 24

• 13

What is a prime number?

• A number that can only be divided by 1 and itself.

• A number that has more than two factors.

• A number that is even and greater than 2.

• A number that is less than 1.

Is 1 a prime number?

• Yes, 1 is a prime number.

• No, 1 is not considered a prime number.

• 1 is a prime number by definition.

• 1 is a composite number.

How do you find the factors of a number?

• List all the numbers that divide it evenly.

• Multiply the number by itself.

• Add the number to itself repeatedly.

• Subtract the number from itself until you reach zero.

What are the factors of 24?

• 1, 2, 3, 4, 6, 8, 12, and 24

• 1, 2, 4, 8, and 16

• 2, 3, 5, 6, and 12

• 1, 3, 5, 7, and 9

Give an example of a composite number.

• 2

• 3

• 4

• 5

What are the prime factors of 30?

• 2, 3, 4

• 2, 3, 5

• 1, 2, 3

• 5, 6, 7

List the first five multiples of 3.

• 3, 6, 9, 12, and 15

• 3, 6, 9, 12, and 18

• 3, 6, 9, 15, and 18

• 3, 6, 12, 15, and 18

What is a composite number?

• A number that has only two factors.

• A number that has more than two factors.

• A prime number that is greater than one.

• A number that is divisible by one and itself only.