EduSahara™ Worksheet

EduSahara™ Assignment

Name : G.C.D

Chapter : Factors and Multiples

Grade : ICSE Grade VII

License : Non Commercial Use

Question 1

1.

The factors of 81 =

(i)

{1,3,9,27,81,2,8}
(ii)

{1,3,9,27,81}
(iii)

{1,3,27,81,2}
(iv)

{1,27,81,8,26}
(v)

{1,3,9,27,81,8}

Question 2

2.

The factors of 82 =

(i)

{1,41,82,42}
(ii)

{1,2,41,82,42,81}
(iii)

{1,2,41,82}
(iv)

{2,41,42,1}

Question 3

3.

The factors of 59 =

(i)

{1,59}
(ii)

{1,59,2,58}
(iii)

{1,59,2}
(iv)

{1,2}
(v)

{58,2}

Question 4

4.

The factors of 18 =

(i)

{1,2,3,18,17,10}
(ii)

{1,2,3,6,9,18}
(iii)

{1,2,6,9,18,4}
(iv)

{1,2,3,6,9,18,5,4}

Question 5

5.

Find all common factors of 29 and 7

(i)

{1,29}
(ii)

{29}
(iii)

{7}
(iv)

{1}
(v)

{1,7}

Question 6

6.

Find all common factors of 32 , 28 and 40

(i)

{1,2,16}
(ii)

{2,4,14}
(iii)

{1,2,4,28}
(iv)

{1,2,4}
(v)

{1,2,4,32}

Question 7

7.

Find all common factors of 3 and 7

(i)

{3}
(ii)

{1,7}
(iii)

{7}
(iv)

{1,3}
(v)

{1}

Question 8

8.

Find all common factors of 26 , 32 and 9

(i)

{1,4}
(ii)

{1,26}
(iii)

{4}
(iv)

{13}
(v)

{1}

Question 9

9.

Find the HCF of
{16,10}

(i)

1
(ii)

3
(iii)

2
(iv)

5
(v)

0

Question 10

10.

Find the HCF of
{35,18}

(i)

4
(ii)

2
(iii)

1
(iv)

0
(v)

(-1)

Question 11

11.

Find the HCF of
{4,44,27}

(i)

3
(ii)

1
(iii)

2
(iv)

(-2)
(v)

0

Question 12

12.

Find the HCF of
{8,45,4,34}

(i)

1
(ii)

(-1)
(iii)

3
(iv)

0
(v)

2

Question 13

13.

Find the HCF of
{540,1140}

(i)

57
(ii)

62
(iii)

59
(iv)

60
(v)

61

Question 14

14.

Find the HCF of
{380,300}

(i)

17
(ii)

20
(iii)

21
(iv)

19
(v)

23

Question 15

15.

Find the HCF of
{960,1260,810}

(i)

27
(ii)

31
(iii)

30
(iv)

29
(v)

33

Question 16

16.

Find the HCF of
{3000,1920,2640,2220}

(i)

57
(ii)

59
(iii)

63
(iv)

60
(v)

61

Question 17

17.

Find the product of LCM and HCF of
{9,6}

(i)

54
(ii)

53
(iii)

51
(iv)

55
(v)

57

Question 18

18.

Find the product of LCM and HCF of
{26,21}

(i)

547
(ii)

548
(iii)

544
(iv)

546
(v)

545

Question 19

19.

Find the product of LCM and HCF of
{22,16,18}

(i)

3167
(ii)

3170
(iii)

3166
(iv)

3169
(v)

3168

Question 20

20.

Find the product of LCM and HCF of
{26,15,28,22}

(i)

60062
(ii)

60060
(iii)

60059
(iv)

60061
(v)

60058

Question 21

21.

The simplest form of the fraction
28
560
is

(i)

(
-1
20
)
(ii)

1
20
(iii)

3
20
(iv)

1
18
(v)

1
22

Question 22

22.

Reduce the fraction
5880
13720

(i)

1
3
(ii)

1
7
(iii)

3
5
(iv)

3
7
(v)

5
7

Assignment Key