In KS3 Maths, you'll encounter different types of numbers like integers, natural numbers, fractions, and even letters used in algebra. One special group you'll meet is the prime numbers.

So, what's a prime number? It's a whole number with exactly two factors - just itself and 1. For example, 2, 3, 5, 7, and 11 are the first five primes. Do you know the sixth?

Quizzes: Your Ticket to Fun Learning. Dive In
1 .

The word 'prime' is an abbreviation for what?

Primary

Primative

Priority

It is not an abbreviation

Prime is a word in its own right

2 .

Is the number 1 a prime number?

Yes, because it is a positive whole number

No

Sometimes

Yes, because it is only divisible by itself and 1

The number 1 has only one factor - itself. Remember the rule, a prime number has TWO factors itself AND 1

3 .

The number 24 has eight factors. Seven of the factors are 1, 2, 3, 4, 6, 12 and 24. What is the missing factor?

5

8

10

14

All the numbers given (along with the correct answer, 8) can be divided into 24 with the result that the answer is a whole number

4 .

What is the next prime number after 43?

44

45

46

47

You'd do well to memorise the first 30 or so prime numbers

5 .

Is the number 14 a prime number?

Yes

No

Yes, because it is divisible by 2

It depends which way you look at it

There are four factors of 14 - the numbers 1, 2, 7 and 14. Because there are more than two factors, it cannot be a prime number

6 .

Which of these numbers is a prime number?

4

7

9

12

All the incorrect answers have three or more factors

7 .

What is the next prime number after 97?

98

99

100

101

1 and 101 are the only factors of 101 and therefore it is a prime number

8 .

Is there an easy way to work out which numbers are prime?

Yes

No

Sometimes

Only if you are a genius

Unfortunately you have to either learn the numbers or work them out

9 .

Which of these is a prime number?

33

35

37

39

35 appears in the 5 and the 7 times tables, 33 is in the 3 and 11 times tables and 39 (which may have tricked you) is divisible by 13 and 3

10 .

Which of these is not a prime number?

13

15

17

19

15 can be divided by 3 and 5 as well as 1 and 15

**Unlimited Quizzes Await You! 🚀**

Hey there, quiz champ! 🌟 You've already tackled today's free questions.

Ready for more?

Ready for more?

🔓 Unlock UNLIMITED Quizzes and challenge yourself every day. But that's

not all...

not all...

🔥 As a Subscriber you can join our thrilling "Daily Streak" against other

quizzers. Try to win a coveted spot on our Hall of Fame Page.

quizzers. Try to win a coveted spot on our Hall of Fame Page.

Don't miss out! Join us now and keep the fun rolling. 🎉

**Unlimited Quizzes Await You! 🚀**

Hey there, quiz champ! 🌟 You've already tackled today's free questions. Ready for more?

🔓 Unlock UNLIMITED Quizzes and challenge yourself every day. But that's not all...

🔥 As a Subscriber you can join our thrilling "Daily Streak" against other quizzers. Try to win a coveted spot on our Hall of Fame Page.

Don't miss out! Join us now and keep the fun rolling. 🎉