Prime Time Practice 1 | Homework Practice

Concept Check

Question 1mcq

While solving a fresh example in the math lab, Tara sees this question: which of these numbers is prime?

A.

11

B.

21

C.

12

D.

15

Question 2mcq

While answering a teacher question in the activity table, Leela sees this question: which number is a factor of

36

?

A.

37

B.

35

C.

6

D.

7

Question 3mcq

While preparing a notebook entry in the art room, Meera sees this question: which number is a factor of

45

?

A.

46

B.

9

C.

44

D.

10

Question 4mcq

Which of these numbers is prime?

A.

19

B.

15

C.

12

D.

21

Question 5mcq

Which of these numbers is prime?

A.

21

B.

23

C.

12

D.

15

Apply and Solve

Question 6mcq

Which number is a factor of

18

?

A.

7

B.

6

C.

17

D.

19

Question 7mcq

Which number is a factor of

30

?

A.

7

B.

6

C.

31

D.

29

Question 8mcq

Which of these numbers is prime?

A.

12

B.

17

C.

21

D.

15

Question 9mcq

Which of these numbers is prime?

A.

15

B.

12

C.

21

D.

19

Question 10mcq

Which number is a factor of

36

?

A.

35

B.

6

C.

7

D.

37