EduSahara™ Worksheet

EduSahara™ Assignment

Name : Prime Factorization and L.C.M and H.C.F

Chapter : Real Numbers

Grade : SSC Grade X

License : Non Commercial Use

Question 1

1.

Find the prime factorization of
46

(i)

5

✕

23
(ii)

2

✕

23 2
(iii)

2

✕

22
(iv)

2

✕

23
(v)

2 -2

✕

23

Question 2

2.

Find the prime factorization of
54

(i)

2 2

✕

3 3
(ii)

2

✕

1
(iii)

5

✕

3 3
(iv)

2

✕

3 3
(v)

2

✕

3 2

Question 3

3.

Find the prime factorization of
728

(i)

2 3

✕

7

✕

15
(ii)

2 3

✕

7

✕

10
(iii)

2 3

✕

7

✕

13
(iv)

2 4

✕

7

✕

13
(v)

2 3

✕

7

✕

12

Question 4

4.

Find the prime factorization of
9984

(i)

2 5

✕

3

✕

13
(ii)

2 8

✕

3

✕

13 2
(iii)

2 8

✕

3

✕

12
(iv)

5 8

✕

3

✕

13
(v)

2 8

✕

3

✕

13

Question 5

5.

Find the number of prime factors of
49

(i)

1
(ii)

0
(iii)

3
(iv)

2
(v)

4

Question 6

6.

Find the number of prime factors of
72

(i)

0
(ii)

2
(iii)

1
(iv)

3
(v)

4

Question 7

7.

Find the number of prime factors of
650

(i)

3
(ii)

4
(iii)

1
(iv)

0
(v)

2

Question 8

8.

Find the number of prime factors of
4032

(i)

1
(ii)

0
(iii)

2
(iv)

4
(v)

3

Question 9

9.

Find the total number of factors of
35

(i)

2
(ii)

5
(iii)

4
(iv)

3
(v)

7

Question 10

10.

Find the total number of factors of
93

(i)

2
(ii)

3
(iii)

5
(iv)

4
(v)

6

Question 11

11.

Find the total number of factors of
1029

(i)

7
(ii)

8
(iii)

10
(iv)

5
(v)

9

Question 12

12.

Find the total number of factors of
9240

(i)

63
(ii)

66
(iii)

61
(iv)

64
(v)

65

Question 13

13.

Find the HCF of
{12,8}

(i)

5
(ii)

3
(iii)

4
(iv)

2
(v)

6

Question 14

14.

Find the HCF of
{36,35}

(i)

(-2)
(ii)

0
(iii)

1
(iv)

3
(v)

2

Question 15

15.

Find the HCF of
{21,25,6}

(i)

2
(ii)

1
(iii)

4
(iv)

(-1)
(v)

0

Question 16

16.

Find the HCF of
{25,18,38,34}

(i)

4
(ii)

0
(iii)

(-1)
(iv)

1
(v)

2

Question 17

17.

Find the HCF of
{50,150}

(i)

51
(ii)

53
(iii)

49
(iv)

50
(v)

47

Question 18

18.

Find the HCF of
{920,760}

(i)

43
(ii)

37
(iii)

39
(iv)

40
(v)

41

Question 19

19.

Find the HCF of
{184,328,288}

(i)

8
(ii)

9
(iii)

6
(iv)

7
(v)

11

Question 20

20.

Find the HCF of
{480,645,300,450}

(i)

18
(ii)

16
(iii)

14
(iv)

15
(v)

13

Question 21

21.

Find the LCM of
{4,6}

(i)

12
(ii)

10
(iii)

15
(iv)

13
(v)

11

Question 22

22.

Find the LCM of
{15,14}

(i)

211
(ii)

210
(iii)

213
(iv)

209
(v)

207

Question 23

23.

Find the LCM of
{6,10,12}

(i)

63
(ii)

57
(iii)

59
(iv)

61
(v)

60

Question 24

24.

Find the LCM of
{10,16,12,18}

(i)

717
(ii)

723
(iii)

719
(iv)

720
(v)

721

Question 25

25.

Find the LCM of
{48,42}

(i)

335
(ii)

336
(iii)

333
(iv)

338
(v)

337

Question 26

26.

Find the LCM of
{30,80}

(i)

240
(ii)

241
(iii)

238
(iv)

243
(v)

239

Question 27

27.

Find the LCM of
{72,66,12}

(i)

794
(ii)

792
(iii)

793
(iv)

789
(v)

791

Question 28

28.

Find the LCM of
{360,120,510,180}

(i)

6123
(ii)

6119
(iii)

6121
(iv)

6120
(v)

6117

Question 29

29.

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

(i)

21
(ii)

25
(iii)

24
(iv)

23
(v)

27

Question 30

30.

Find the product of LCM and HCF of
{24,8}

(i)

194
(ii)

191
(iii)

192
(iv)

193
(v)

190

Question 31

31.

Find the product of LCM and HCF of
{18,21,15}

(i)

1890
(ii)

1891
(iii)

1887
(iv)

1892
(v)

1889

Question 32

32.

Find the product of LCM and HCF of
{20,10,14,25}

(i)

700
(ii)

703
(iii)

699
(iv)

698
(v)

701

Assignment Key