Squares and Exponents
Factors
Multiples
Divisibility
Prime Numbers
100

What is 52?

25

100

Name a factor of 24

1, 2, 3, 4, 6, 8 or 12

100

TRUE OR FALSE: 72 is a multiple of 36

true

100

What does it mean for a number to be divisible by another number?

It can be divided by that number with no remainers

100

Name any prime number

2, 3, 5, 7, 11, 13, 17, 19 .... etc ....

200

Which of the following is a perfect square?
16   5    7    20

16 

(4 x 4 = 16)

200

Name a factor of 120 that is higher than 25

30, 40, 60 ...

200

Which is NOT a multiple of 7: 14, 21, 28, 34

34

200

How do you know if a number is divisible by 2?

It is even

200

Which is NOT a prime number:
3, 5, 8, 11, 13

8

300

TRUE OR FALSE: "The square root of 36 is 6"

TRUE

300

What is the HCF of 8 and 12?

4

300

What is the LCM of 6 and 9?

18

300

What numbers is 16 divisible by?

1, 2, 4, 8

300

What are the only two factors of a prime number?

1 and itself

400

What is 5x5x5x6x6 simplified?
(simplified not calculated)

53x62

400

What is the HCF of 96 and 21

3

400

LCM is the _____ multiple that two or more numbers share

lowest or smallest

400

How do you know that 2,378,000 is divisible by 8?

The last three digits are 0 

400

Give an example of 26 in prime factorisation.

2x13

500

What is 5x5x5x7x7x8x7x8 simplified? 

53x73x82

500

TRUE OR FALSE: A factor can be larger than the number itself. 

(e.g. 6 could have a factor larger than 6)

FALSE. Numbers only have factors equal to themselves and smaller. 

500

What is the LCM of 12 and 16?

48

500

What is the test for divisibility by 7?

there is no known test for this! 

500

Is 1 a prime number, composite number, neither or both?

neither. 

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