What are composite numbers and provide examples

The video tutorial explains the concept of factors, highlighting that prime numbers have only two factors: themselves and one. It contrasts prime numbers with composite numbers, which have more than two factors. Examples of composite numbers, like 6, are given, showing different ways to express them as products of integers. The tutorial also provides an example of a prime number, 11, emphasizing that it can only be expressed as 11 times 1.

What is a defining characteristic of a prime number?

• It has more than two factors.

• It is divisible by 2.

• It has exactly two factors.

• It is an even number.

Which of the following is a composite number?

• 5

• 3

• 11

• 6

How can the number 6 be expressed as a product of two integers?

• 6 = 6 x 2

• 6 = 3 x 2

• 6 = 4 x 1

• 6 = 5 x 1

Which of the following is NOT a way to express the number 11?

• 11 = 11 + 0

• 11 = 2 x 5.5

• 11 = 11 x 1

• 11 = 1 x 11

Why is the number 11 considered a prime number?

• It is an even number.

• It can only be divided by 1 and itself.

• It has more than two factors.

• It can be divided by 3.