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 HCF of
{36,228}

(i)

9
(ii)

11
(iii)

14
(iv)

13
(v)

12

Question 2

2.

Find the LCM of
{6,14}

(i)

39
(ii)

43
(iii)

41
(iv)

45
(v)

42

Question 3

3.

Find the HCF of
{45,24,35,49}

(i)

0
(ii)

2
(iii)

3
(iv)

1
(v)

(-1)

Question 4

4.

Find the LCM of
{9,6}

(i)

15
(ii)

21
(iii)

19
(iv)

18
(v)

17

Question 5

5.

Find all common factors of 27 , 18 and 25

(i)

{1,27}
(ii)

{1}
(iii)

{2}
(iv)

{1,18}
(v)

{27}

Question 6

6.

Find all common factors of 34 , 8 and 4

(i)

{1,2,8}
(ii)

{1,17}
(iii)

{2,8}
(iv)

{1,2}
(v)

{1,2,34}

Question 7

7.

The factors of 94 =

(i)

{2,47,46,93}
(ii)

{1,2,47,94}
(iii)

{1,2,47,94,46,93}
(iv)

{1,2,47,94,93}
(v)

{1,2,94}

Question 8

8.

Find the LCM of
{400,100,220,200}

(i)

4399
(ii)

4401
(iii)

4402
(iv)

4398
(v)

4400

Question 9

9.

The common multiples of 6 , 8 and 9 =

(i)

{144,216,83}
(ii)

{144,216,279}
(iii)

{72,144,216}
(iv)

{72,144,313}
(v)

{72,216,187}

Question 10

10.

Find the number of prime factors of
1728

(i)

1
(ii)

2
(iii)

0
(iv)

4
(v)

3

Question 11

11.

Find the total number of factors of
16200

(i)

59
(ii)

61
(iii)

62
(iv)

58
(v)

60

Question 12

12.

Find the LCM of
{12,16,15}

(i)

241
(ii)

239
(iii)

237
(iv)

240
(v)

242

Question 13

13.

Find the total number of factors of
40

(i)

11
(ii)

7
(iii)

5
(iv)

9
(v)

8

Question 14

14.

The multiples of 13 =

(i)

{13,26,39,52,65,78,14}
(ii)

{13,26,39,78,64,77}
(iii)

{13,26,52,65,78,14}
(iv)

{13,26,39,52,65,78,51,14}
(v)

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

Question 15

15.

Find the number of prime factors of
1944

(i)

1
(ii)

2
(iii)

3
(iv)

4
(v)

0

Question 16

16.

Find the prime factorization of
6468

(i)

2 2

✕

3 2

✕

7 2

✕

11
(ii)

2 2

✕

3

✕

7 2

✕

11
(iii)

(-1) 2

✕

3

✕

7 2

✕

11
(iv)

2 2

✕

3

✕

9 2

✕

11
(v)

2

✕

3

✕

7 2

✕

11

Question 17

17.

Find all common factors of 11 and 1

(i)

{1}
(ii)

{11}
(iii)

{1,11}
(iv)

{1,0}
(v)

{0}

Question 18

18.

The common multiples of 3 and 7 =

(i)

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

{21,42,63,105,11}
(iii)

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

{21,42,84,105,103}
(v)

{21,42,63,84,195}

Question 19

19.

Find the number of prime factors of
57

(i)

1
(ii)

3
(iii)

2
(iv)

4
(v)

0

Question 20

20.

Which of the following is an even number?

(i)

13
(ii)

7
(iii)

35
(iv)

3
(v)

34

Question 21

21.

Find the LCM of
{18,72,102}

(i)

1224
(ii)

1223
(iii)

1227
(iv)

1225
(v)

1222

Question 22

22.

Find the twin primes in the following

(i)

(71,73)
(ii)

(3,7)
(iii)

(3,2)
(iv)

(3,11)
(v)

(2,5)

Question 23

23.

Find the HCF of
{12,15}

(i)

5
(ii)

0
(iii)

2
(iv)

3
(v)

4

Question 24

24.

Find the prime factorization of
28

(i)

5 2

✕

7
(ii)

2 2

✕

7 2
(iii)

2

✕

7
(iv)

2 2

✕

7
(v)

(-1) 2

✕

7

Question 25

25.

The factors of 51 =

(i)

{3,51,4,18}
(ii)

{3,17,51,18}
(iii)

{1,3,17,51}
(iv)

{1,3,17,51,18}
(v)

{1,3,17,51,4,2}

Assignment Key