Prime Numbers

What is a prime number?

• A number with more than two factors

• A number with only one factor

• A number with exactly two factors

• A number that is divisible by 10

Why is 73 considered a prime number?

• It is divisible by 2 and 5

• It has no divisors other than 1 and itself

• It is divisible by 3 and 9

• It is divisible by 10

Which of the following numbers is not a prime number?

• 84

• None of the above

• 73

• 61

What makes 99 not a prime number?

• It is divisible by 5

• It is divisible by 3 and 9

• It is divisible by 2

• It is divisible by 7

Which number is a prime number?

• None of the above

• 61

• 99

• 84