Prime Numbers Quiz

Which of the following numbers is a prime number?

• 4

• 6

• 9

• 7

Why is the number 1 not considered a prime number?

• It is a composite number.

• It is an even number.

• It is only divisible by itself.

• It is divisible by more than two numbers.

What is the smallest prime number?

• 1

• 5

• 3

• 2

What is the largest four-digit prime number?

• 9999

• 9973

• 1001

• 9871

What is the first step in the personal trick to find prime numbers?

• Cut the multiples of 2.

• Cut the multiples of 11.

• Cut the multiples of 3.

• Cut the multiples of 5.

Which numbers are cut in the third step of the trick?

• Multiples of 2

• Multiples of 5

• Multiples of 11

• 49 and 91

How many prime numbers are there between 1 and 100?

• 20

• 25

• 30

• 35

Which of the following numbers is not a prime number?

• 23

• 29

• 33

• 37

What is the prime number immediately after 19?

• 21

• 25

• 27

• 23

Which of the following numbers is a prime number?

• 51

• 53

• 57

• 55