EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Factors and Multiples

Grade : ICSE Grade VI

License : Non Commercial Use

Question 1

1.

Find the LCM of
{16,14}

(i)

111
(ii)

115
(iii)

109
(iv)

113
(v)

112

Question 2

2.

The common multiples of 4 , 9 and 8 =

(i)

{72,144}
(ii)

{144,361}
(iii)

{72,17}
(iv)

{144,155}
(v)

{72,25}

Question 3

3.

The factors of 64 =

(i)

{1,2,4,8,32,9,3}
(ii)

{1,2,4,8,16,32,64,9}
(iii)

{2,4,8,16,32,64,33}
(iv)

{1,2,4,8,16,32,64}
(v)

{1,2,4,8,16,32,64,63,15}

Question 4

4.

Find all common factors of 41 and 19

(i)

{19}
(ii)

{1,41}
(iii)

{1,19}
(iv)

{1}
(v)

{41}

Question 5

5.

The common multiples of 7 and 3 =

(i)

{21,63,84,105,202}
(ii)

{21,42,63,105,99}
(iii)

{21,63,84,105,68}
(iv)

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

{21,42,84,105,100}

Question 6

6.

Find the total number of factors of
2430

(i)

26
(ii)

23
(iii)

24
(iv)

22
(v)

25

Question 7

7.

Find the prime factorization of
1056

(i)

2 5

✕

1

✕

11
(ii)

2 4

✕

3

✕

11
(iii)

2 5

✕

3

✕

11 2
(iv)

2 5

✕

3

✕

11
(v)

2 5

✕

5

✕

11

Question 8

8.

The factors of 75 =

(i)

{1,3,5,15,25,75,14}
(ii)

{1,3,5,15,25,75}
(iii)

{1,3,5,15,25,75,74,26}
(iv)

{3,15,25,75,2,4}
(v)

{1,5,15,25,75,74}

Question 9

9.

Which of the following is a prime number?

(i)

19
(ii)

34
(iii)

40
(iv)

12
(v)

10

Question 10

10.

The factors of 10 =

(i)

{1,2,5,10}
(ii)

{1,5,10,9}
(iii)

{1,2,5,10,9,6}
(iv)

{1,10,2,6}

Question 11

11.

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

(i)

52
(ii)

53
(iii)

56
(iv)

54
(v)

55

Question 12

12.

Find the LCM of
{15,14,18,12}

(i)

1257
(ii)

1262
(iii)

1261
(iv)

1259
(v)

1260

Question 13

13.

Find the prime factorization of
4050

(i)

2 2

✕

3 4

✕

5 2
(ii)

2

✕

3 4

✕

2 2
(iii)

2

✕

3 4

✕

5 2
(iv)

4

✕

3 4

✕

5 2
(v)

1

✕

3 4

✕

5 2

Question 14

14.

Find the number of prime factors of
65

(i)

4
(ii)

0
(iii)

1
(iv)

3
(v)

2

Question 15

15.

Find the HCF of
{620,140,60}

(i)

19
(ii)

22
(iii)

21
(iv)

17
(v)

20

Question 16

16.

Find the LCM of
{120,450,60}

(i)

1800
(ii)

1802
(iii)

1799
(iv)

1801
(v)

1798

Question 17

17.

The multiples of 2 =

(i)

{2,4,6,8,10,12,11}
(ii)

{2,4,6,8,10,12}
(iii)

{2,4,6,8,10,12,9,3}
(iv)

{2,6,8,10,12,3}
(v)

{2,4,6,10,11,9}

Question 18

18.

The common multiples of 6 , 2 and 8 =

(i)

{48,72,51}
(ii)

{24,72,139}
(iii)

{48,72,79}
(iv)

{24,48,72}
(v)

{48,72,209}

Question 19

19.

Find the number of prime factors of
20

(i)

4
(ii)

3
(iii)

0
(iv)

1
(v)

2

Question 20

20.

Find the product of LCM and HCF of
{8,12,6,26}

(i)

621
(ii)

625
(iii)

623
(iv)

624
(v)

626

Question 21

21.

Find the number of prime factors of
891

(i)

0
(ii)

4
(iii)

1
(iv)

2
(v)

3

Question 22

22.

Find the number of prime factors of
5544

(i)

4
(ii)

7
(iii)

2
(iv)

3
(v)

5

Question 23

23.

Find the HCF of
{128,80}

(i)

16
(ii)

17
(iii)

14
(iv)

15
(v)

18

Question 24

24.

Find all common factors of 25 , 30 and 38

(i)

{1,3}
(ii)

{25}
(iii)

{1}
(iv)

{1,25}
(v)

{10}

Question 25

25.

Find the prime factorization of
4

(i)

(-1) 2
(ii)

5 2
(iii)

2 2
(iv)

2
(v)

2 3

Assignment Key