EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Factors and Multiples

Grade : ICSE Grade VII

License : Non Commercial Use

Question 1

1.

Find the product of LCM and HCF of
{4,9,6,8}

(i)

69
(ii)

73
(iii)

74
(iv)

71
(v)

72

Question 2

2.

Find the product of LCM and HCF of
{4,22}

(i)

89
(ii)

87
(iii)

88
(iv)

86
(v)

91

Question 3

3.

Find the prime factorization of
58

(i)

2

✕

28
(ii)

2

✕

29
(iii)

2 2

✕

29
(iv)

2

✕

31
(v)

-1

✕

29

Question 4

4.

The common multiples of 6 , 10 and 2 =

(i)

{30,251}
(ii)

{60,217}
(iii)

{60,69}
(iv)

{30,137}
(v)

{30,60}

Question 5

5.

Find the HCF of
{2460,1620,2040,540}

(i)

61
(ii)

58
(iii)

60
(iv)

62
(v)

59

Question 6

6.

The factors of 31 =

(i)

{1,31}
(ii)

{1,30}
(iii)

{1,31,2}
(iv)

{2,30}
(v)

{1,31,30,2}

Question 7

7.

Reduce the fraction
756
1008

(i)

5
4
(ii)

3
2
(iii)

3
4
(iv)

1
2
(v)

1
4

Question 8

8.

Find the total number of factors of
1026

(i)

15
(ii)

18
(iii)

14
(iv)

17
(v)

16

Question 9

9.

The multiples of 13 =

(i)

{13,26,39,52,65,78,64}
(ii)

{13,26,39,52,65,78}
(iii)

{13,26,39,65,78,27}
(iv)

{13,26,65,78,79,14}
(v)

{13,26,39,52,65,78,79,64}

Question 10

10.

Find the prime factorization of
9

(i)

3
(ii)

6 2
(iii)

3 -1
(iv)

3 3
(v)

3 2

Question 11

11.

Find the number of prime factors of
21

(i)

3
(ii)

2
(iii)

1
(iv)

4
(v)

0

Question 12

12.

Find all common factors of 27 and 1

(i)

{1}
(ii)

{27}
(iii)

{1,0}
(iv)

{0}
(v)

{1,9}

Question 13

13.

Find the total number of factors of
35

(i)

6
(ii)

4
(iii)

2
(iv)

3
(v)

5

Question 14

14.

Find the LCM of
{144,408,96,264}

(i)

53856
(ii)

53855
(iii)

53854
(iv)

53857
(v)

53859

Question 15

15.

Which of the following is an odd number?

(i)

42
(ii)

48
(iii)

2
(iv)

47
(v)

46

Question 16

16.

Find the HCF of
{252,48}

(i)

14
(ii)

13
(iii)

12
(iv)

11
(v)

9

Question 17

17.

Find the total number of factors of
3276

(i)

34
(ii)

38
(iii)

37
(iv)

36
(v)

35

Question 18

18.

Which of the following is a prime number?

(i)

17
(ii)

40
(iii)

21
(iv)

35
(v)

8

Question 19

19.

Find the HCF of
{120,60}

(i)

61
(ii)

58
(iii)

59
(iv)

62
(v)

60

Question 20

20.

The factors of 52 =

(i)

{2,4,13,26,12,51}
(ii)

{1,2,4,13,26,52}
(iii)

{1,2,4,13,52,5}
(iv)

{1,2,4,13,26,52,5}
(v)

{1,2,4,13,26,52,3,27}

Question 21

21.

Find the number of prime factors of
76

(i)

2
(ii)

3
(iii)

1
(iv)

4
(v)

0

Question 22

22.

The common multiples of 8 , 9 and 4 =

(i)

{72,280}
(ii)

{144,207}
(iii)

{72,65}
(iv)

{144,17}
(v)

{72,144}

Question 23

23.

The multiples of 13 =

(i)

{13,39,52,65,25,14}
(ii)

{13,26,39,65,78,51}
(iii)

{13,26,39,52,65,78}
(iv)

{13,26,39,52,65,78,77,38}
(v)

{13,26,39,52,65,78,14}

Question 24

24.

Find the LCM of
{150,90}

(i)

451
(ii)

453
(iii)

450
(iv)

448
(v)

449

Question 25

25.

The common multiples of 7 and 3 =

(i)

{21,63,84,105,79}
(ii)

{21,42,63,105,98}
(iii)

{21,42,84,105,251}
(iv)

{21,42,63,84,105}
(v)

{21,63,84,105,50}

Assignment Key