EduSahara™ Worksheet

EduSahara™ Assignment

Name : HCF

Chapter : Playing with Numbers

Grade : CBSE Grade VI

License : Non Commercial Use

Question 1

1.

Find all common factors of 21 and 49

(i)

{7,21}
(ii)

{1,7}
(iii)

{1,7,21}
(iv)

{1,7,49}
(v)

{1,49}

Question 2

2.

Find all common factors of 30 , 40 and 36

(i)

{1,2,15}
(ii)

{1,8}
(iii)

{1,2,40}
(iv)

{1,2}
(v)

{1,30}

Question 3

3.

Find all common factors of 29 and 43

(i)

{29}
(ii)

{1}
(iii)

{1,29}
(iv)

{1,43}
(v)

{43}

Question 4

4.

Find all common factors of 30 , 44 and 32

(i)

{1,5}
(ii)

{1,2}
(iii)

{2,11}
(iv)

{1,2,11}
(v)

{1,2,5}

Question 5

5.

Find the HCF of
{14,15}

(i)

3
(ii)

2
(iii)

0
(iv)

1
(v)

(-2)

Question 6

6.

Find the HCF of
{20,6}

(i)

2
(ii)

1
(iii)

4
(iv)

3
(v)

(-1)

Question 7

7.

Find the HCF of
{32,9,10}

(i)

0
(ii)

(-2)
(iii)

4
(iv)

2
(v)

1

Question 8

8.

Find the HCF of
{15,18,36,9}

(i)

6
(ii)

3
(iii)

2
(iv)

4
(v)

0

Question 9

9.

Find the HCF of
{600,240}

(i)

122
(ii)

120
(iii)

121
(iv)

119
(v)

118

Question 10

10.

Find the HCF of
{1860,2280}

(i)

61
(ii)

63
(iii)

60
(iv)

59
(v)

58

Question 11

11.

Find the HCF of
{960,1400,1240}

(i)

38
(ii)

43
(iii)

41
(iv)

39
(v)

40

Question 12

12.

Find the HCF of
{345,405,570,675}

(i)

17
(ii)

15
(iii)

12
(iv)

16
(v)

14

Question 13

13.

Find all common factors of 47 and 31

(i)

{31}
(ii)

{1,47}
(iii)

{1,31}
(iv)

{1}
(v)

{47}

Question 14

14.

Find all common factors of 10 , 4 and 14

(i)

{1,4}
(ii)

{2,5}
(iii)

{1,2,4}
(iv)

{1,2}
(v)

{1,2,5}

Question 15

15.

Find all common factors of 17 and 29

(i)

{29}
(ii)

{1,29}
(iii)

{1,17}
(iv)

{1}
(v)

{17}

Question 16

16.

Find all common factors of 25 , 18 and 34

(i)

{1,5}
(ii)

{1,6}
(iii)

{1}
(iv)

{9}
(v)

{25}

Question 17

17.

Find the HCF of
{9,4}

(i)

1
(ii)

3
(iii)

(-2)
(iv)

2
(v)

0

Question 18

18.

Find the HCF of
{6,38}

(i)

0
(ii)

4
(iii)

2
(iv)

1
(v)

3

Question 19

19.

Find the HCF of
{14,30,48}

(i)

1
(ii)

2
(iii)

3
(iv)

0
(v)

5

Question 20

20.

Find the HCF of
{24,25,32,49}

(i)

0
(ii)

3
(iii)

(-2)
(iv)

2
(v)

1

Question 21

21.

Find the HCF of
{160,100}

(i)

21
(ii)

17
(iii)

23
(iv)

20
(v)

19

Question 22

22.

Find the HCF of
{700,960}

(i)

21
(ii)

23
(iii)

18
(iv)

19
(v)

20

Question 23

23.

Find the HCF of
{144,138,150}

(i)

4
(ii)

6
(iii)

9
(iv)

7
(v)

5

Question 24

24.

Find the HCF of
{330,660,600,30}

(i)

29
(ii)

30
(iii)

28
(iv)

33
(v)

31

Assignment Key