Factors I - Normal

Question 1: What is LCM (the least common multiple) of

4

and

5

?

A

10

B

15

C

12

D

20

Question 2: What is LCM of

5

and

10

?

A

50

B

5

C

20

D

10

Question 3: What is LCM of

8

and

6

?

A

48

B

24

C

32

D

40

Question 4: Write

32

as a product of prime numbers

A

8 \cdot 4

B

2 \cdot 2 \cdot 2 \cdot 4

C

2 \cdot 2 \cdot 2 \cdot 2 \cdot 2

D

4 \cdot 4 \cdot 2

Question 5: Write

40

as a product of prime numbers

A

2 \cdot 2 \cdot 6

B

5 \cdot 8

C

2 \cdot 2 \cdot 2 \cdot 5

D

2 \cdot 2 \cdot 3 \cdot 5

Question 6: Write

50

as a product of prime numbers

A

5 \cdot 10

B

25 \cdot 2

C

2 \cdot 5 \cdot 5

D

2 \cdot 3 \cdot 5

Question 7: What is HCF (the highest common factor) of

15

and

20

?

A

5

B

3

C

2

D

10

Question 8: What is HCF of

48

and

24

?

A

6

B

24

C

8

D

12

Question 9: What is HCF of

27

and

18

?

A

9

B

3

C

6

D

18

Question 10: Solve

2^{2} \cdot 3 \cdot 5

A

60

B

30

C

50

D

48

Test: Factors I - Normal

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