Understanding Composite Numbers

The video tutorial by Mr. J explains composite numbers, which are whole numbers with more than two factors. Through six examples, the video differentiates between composite and prime numbers. It highlights that composite numbers can be divided by more than two numbers, while prime numbers have exactly two factors. The examples include numbers 9, 7, 2, 23, 24, and 27, illustrating the concepts of factors and divisibility. The video also notes that 2 is the only even prime number, as all other even numbers are composite.

What is a composite number?

• A number that is not divisible by any other number

• A number with only one factor

• A number with more than two factors

• A number with exactly two factors

Which of the following numbers is composite?

• 7

• 3

• 2

• 9

Why is the number 7 considered a prime number?

• It has more than two factors

• It is divisible by 1 and itself only

• It is an even number

• It is divisible by 3

What makes the number 2 unique among prime numbers?

• It is the only odd prime number

• It is the only even prime number

• It has more than two factors

• It is divisible by 5

Which of the following is a prime number?

• 23

• 24

• 27

• 9

Why is 24 considered a composite number?

• It is a prime number

• It is an odd number

• It is divisible by more than two numbers

• It has only two factors

Which of the following numbers is not composite?

• 27

• 23

• 24

• 9

What are the factors of 27?

• 1, 27

• 1, 2, 27

• 1, 3, 9, 27

• 1, 2, 3, 9

How many factors does a composite number have?

• Exactly two

• Only one

• More than two

• None

Which of the following statements is true about composite numbers?

• They have more than two factors

• They are only divisible by 1 and themselves

• They are always odd

• They are never even