What are Prime Numbers and Composite Numbers? #4

The video tutorial explains the difference between prime and composite numbers. A prime number is defined as a number that can only be divided by one and itself, with the exception of the number one, which is not considered prime. Examples of prime numbers are given, including the fact that two is the only even prime number. The video also discusses the method of identifying prime numbers by checking divisibility. Composite numbers are defined as numbers that are not prime, with examples provided to illustrate the concept.

Which of the following numbers is a prime number?

• 8

• 5

• 6

• 4

Why is the number two unique among prime numbers?

• It is the largest prime number.

• It is the only even prime number.

• It is the smallest prime number.

• It is the only odd prime number.

What is the process to determine if a number is prime?

• Check if it is even.

• Check if it is a multiple of ten.

• Check divisibility by numbers other than one and itself.

• Check if it is a multiple of five.

Which of the following is a composite number?

• 13

• 7

• 11

• 9

Why is the number one not considered a composite number?

• It has only one factor.

• It is a prime number.

• It is a multiple of two.

• It is an even number.