Prime and square numbers

Which of these isn't a prime number...

• 19

• 71

• 33

• 5

Which of these isn't a square number...

• 225

• 9

• 18

• 49

What is the 5th prime number?

What is 5 squared?

• 20

• 15

• 10

• 25

What is the missing prime number: 29, 31, ?, 41, 43?

• 40

• 37

• 35

• 33

Which numbers are coloured in?

• Square numbers

• Prime numbers

What numbers are coloured in?

• Square numbers

• Prime numbers

Which numbers are composite numbers?

• 15

• 61

• 47

• 29

What are the first 6 multiples of 7?

• 7, 14, 21, 28, 35, 42

• 7, 14, 23, 29, 40

• 1,7

• 5, 10, 15, 20, 25, 30

 

Finish the factor pair 2 and ? = 16?