EduSahara™ Worksheet

Question 1

1.

Find the prime factorization of
1400

(i)

2 3

✕

5 2

✕

7
(ii)

2 3

✕

5 2

✕

5
(iii)

2 4

✕

5 2

✕

7
(iv)

2 3

✕

8 2

✕

7
(v)

2 3

✕

5

✕

7

Question 2

2.

Find the LCM of
{108,60,54,84}

(i)

3777
(ii)

3781
(iii)

3780
(iv)

3782
(v)

3779

Question 3

3.

Find the LCM of
{36,54,48}

(i)

433
(ii)

432
(iii)

431
(iv)

429
(v)

434

Question 4

4.

The common multiples of 9 , 4 and 8 =

(i)

{144,33}
(ii)

{144,103}
(iii)

{144,334}
(iv)

{72,144}
(v)

{144,323}

Question 5

5.

Find the LCM of
{104,144}

(i)

1870
(ii)

1873
(iii)

1871
(iv)

1875
(v)

1872

Question 6

6.

The factors of 35 =

(i)

{1,5,7,35,4,34}
(ii)

{1,5,7,35}
(iii)

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

{1,5,7,35,34}
(v)

{1,5,35,6}

Question 7

7.

Find the total number of factors of
35

(i)

4
(ii)

6
(iii)

3
(iv)

5
(v)

1

Question 8

8.

The factors of 52 =

(i)

{2,4,13,26,52,12}
(ii)

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

{2,4,26,52,12,51}
(iv)

{1,2,4,13,26,52,51,12}

Question 9

9.

Find the HCF of
{25,9,40,8}

(i)

1
(ii)

(-1)
(iii)

3
(iv)

2
(v)

0

Question 10

10.

Which of the following numbers is divisible by 5?

(i)

4,609
(ii)

4,610
(iii)

4,611
(iv)

4,608
(v)

4,612

Question 11

11.

The multiples of 11 =

(i)

{11,22,33,44,55,66}
(ii)

{11,22,33,44,55,66,12,32}
(iii)

{11,22,33,44,55,66,32}
(iv)

{11,33,44,55,66,32}
(v)

{11,22,33,66,12,32}

Question 12

12.

Find the LCM of
{6,4}

(i)

13
(ii)

9
(iii)

11
(iv)

14
(v)

12

Question 13

13.

Which of the following numbers is divisible by 11?

(i)

9,020
(ii)

9,018
(iii)

9,021
(iv)

9,019
(v)

9,022

Question 14

14.

Which of the following numbers is divisible by 6?

(i)

6,132
(ii)

6,134
(iii)

6,130
(iv)

6,131
(v)

6,133

Question 15

15.

Find the number of prime factors of
8

(i)

2
(ii)

3
(iii)

4
(iv)

0
(v)

1

Question 16

16.

Find the prime factorization of
32

(i)

5 5
(ii)

2 2
(iii)

2 6
(iv)

2 5
(v)

2 4

Question 17

17.

The common multiples of 3 and 9 =

(i)

{9,18,27,36,54,63,72,81,90,99,108,117,104}
(ii)

{9,27,36,45,54,63,72,81,90,99,108,117,251}
(iii)

{9,18,27,36,45,54,63,72,90,99,108,117,325}
(iv)

{9,18,27,36,45,54,63,72,81,99,108,117,40}
(v)

{9,18,27,36,45,54,63,72,81,90,99,108,117}

Question 18

18.

The multiples of 12 =

(i)

{12,24,36,48,60,72,35,11}
(ii)

{12,36,48,60,72,59}
(iii)

{12,24,36,48,60,72,11}
(iv)

{24,36,48,60,49,11}
(v)

{12,24,36,48,60,72}

Question 19

19.

Find the HCF of
{18,16}

(i)

3
(ii)

(-1)
(iii)

4
(iv)

1
(v)

2

Question 20

20.

Find the LCM of
{16,9,4,6}

(i)

145
(ii)

143
(iii)

146
(iv)

144
(v)

141

Question 21

21.

Find the LCM of
{16,12}

(i)

46
(ii)

47
(iii)

48
(iv)

51
(v)

49

Question 22

22.

Which of the following numbers is divisible by 8?

(i)

3,238
(ii)

3,242
(iii)

3,239
(iv)

3,240
(v)

3,241

Question 23

23.

Find the HCF of
{495,390}

(i)

14
(ii)

16
(iii)

13
(iv)

17
(v)

15

Question 24

24.

Which of the following numbers is divisible by 8?

(i)

3,407
(ii)

3,408
(iii)

3,410
(iv)

3,409
(v)

3,406

Question 25

25.

Which of the following numbers is divisible by 3?

(i)

6,097
(ii)

6,094
(iii)

6,095
(iv)

6,098
(v)

6,096

Assignment Key