Exploring Factors, Multiples, and Prime Numbers

Which of the following is a factor of 6?

• 11

• 9

• 7

• 2

What is the highest common factor (HCF) of 6 and 20?

• 1

• 2

• 3

• 4

Which of the following is a multiple of 3?

• 11

• 5

• 9

• 7

What is the lowest common multiple (LCM) of 3 and 5?

• 12

• 10

• 15

• 20

Which of the following numbers is a prime number?

• 7

• 4

• 9

• 6

Why is 1 not considered a prime number?

• It is even

• It is a composite number

• It has only one factor

• It is odd

Which of the following is NOT a prime number?

• 9

• 5

• 3

• 2

Which of the following is a composite number?

• 2

• 5

• 3

• 4

How many factors does a composite number have?

• Only one

• Exactly two

• More than two

• None

What is the main difference between prime and composite numbers?

• Composite numbers have more than two factors

• Prime numbers are even

• Composite numbers have exactly two factors

• Prime numbers are odd