Prime Time Practice 2 | Homework Practice

Concept Check

Question 1mcq

Which number is a factor of

24

?

A.

25

B.

23

C.

3

D.

5

Question 2mcq

Which is the prime factorisation of

36

?

A.

36\times 1

B.

18\times 2

only

C.

37

D.

2^2\times 3^2

Question 3mcq

Which number is a factor of

45

?

A.

15

B.

46

C.

44

D.

16

Question 4mcq

Which number is a factor of

60

?

A.

61

B.

20

C.

59

D.

21

Question 5mcq

Which option best applies the skill 'Solve HCF-LCM word problems' from Prime Time?

A.Choose the largest number without checking the rule.

B.Ignore the given information.

C.Use the rule carefully and check that the answer fits the given situation.

D.Use an unrelated operation.

Apply and Solve

Question 6mcq

Which number is a factor of

18

?

A.

19

B.

17

C.

7

D.

6

Question 7mcq

Which is the prime factorisation of

24

?

A.

2^3\times 3

B.

24\times 1

C.

12\times 2

only

D.

25

Question 8mcq

Which number is a factor of

36

?

A.

37

B.

9

C.

35

D.

10

Question 9mcq

Which number is a factor of

45

?

A.

46

B.

44

C.

5

D.

6

Question 10mcq

Which option best applies the skill 'Solve HCF-LCM word problems' from Prime Time?

A.Choose the largest number without checking the rule.

B.Ignore the given information.

C.Use an unrelated operation.

D.Use the rule carefully and check that the answer fits the given situation.