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. The tutorial emphasizes that one is neither a prime nor a composite number.

Which of the following numbers is a prime number?

• 8

• 6

• 4

• 5

Why is the number two unique among prime numbers?

• It is the only even prime number.

• It is the largest prime number.

• It is the only prime number divisible by three.

• It is the smallest prime number.

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

• Check divisibility by numbers other than one and itself.

• Check if it is a multiple of ten.

• Check if it is even.

• Check if it is a multiple of five.

Which of the following is a composite number?

• 7

• 11

• 9

• 13

Why is the number one not considered a composite number?

• It is neither prime nor composite.

• It is a prime number.

• It is divisible by two.

• It is not divisible by any number.