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)

1

✕

23
(ii)

2

✕

23
(iii)

2

✕

20
(iv)

2 2

✕

23
(v)

5

✕

23

Question 2

2.

Find the prime factorization of
76

(i)

2 -1

✕

19
(ii)

2

✕

19
(iii)

2 2

✕

19
(iv)

2 2

✕

19 2
(v)

2 2

✕

22

Question 3

3.

Find the prime factorization of
384

(i)

2 7

✕

3 2
(ii)

2 7

✕

6
(iii)

2 7

✕

3
(iv)

2 7

✕

2
(v)

2 7

✕

3 -1

Question 4

4.

Find the prime factorization of
12096

(i)

2 6

✕

1

✕

7
(ii)

4 6

✕

3 3

✕

7
(iii)

2 6

✕

3 3

✕

7
(iv)

2 6

✕

3 3

✕

7 2
(v)

2 6

✕

3 2

✕

7

Question 5

5.

Find the number of prime factors of
40

(i)

4
(ii)

2
(iii)

3
(iv)

0
(v)

1

Question 6

6.

Find the number of prime factors of
81

(i)

4
(ii)

0
(iii)

3
(iv)

2
(v)

1

Question 7

7.

Find the number of prime factors of
594

(i)

2
(ii)

1
(iii)

3
(iv)

0
(v)

4

Question 8

8.

Find the number of prime factors of
1920

(i)

4
(ii)

0
(iii)

2
(iv)

3
(v)

1

Question 9

9.

Find the total number of factors of
30

(i)

6
(ii)

8
(iii)

11
(iv)

7
(v)

9

Question 10

10.

Find the total number of factors of
78

(i)

9
(ii)

11
(iii)

8
(iv)

7
(v)

5

Question 11

11.

Find the total number of factors of
760

(i)

13
(ii)

15
(iii)

16
(iv)

17
(v)

18

Question 12

12.

Find the total number of factors of
9800

(i)

35
(ii)

33
(iii)

37
(iv)

36
(v)

38

Question 13

13.

Find the HCF of
{9,12}

(i)

2
(ii)

1
(iii)

4
(iv)

5
(v)

3

Question 14

14.

Find the HCF of
{14,45}

(i)

2
(ii)

1
(iii)

3
(iv)

(-2)
(v)

0

Question 15

15.

Find the HCF of
{44,40,28}

(i)

4
(ii)

5
(iii)

2
(iv)

3
(v)

6

Question 16

16.

Find the HCF of
{25,48,27,40}

(i)

3
(ii)

2
(iii)

(-1)
(iv)

0
(v)

1

Question 17

17.

Find the HCF of
{96,36}

(i)

14
(ii)

11
(iii)

10
(iv)

13
(v)

12

Question 18

18.

Find the HCF of
{880,1280}

(i)

80
(ii)

79
(iii)

77
(iv)

81
(v)

82

Question 19

19.

Find the HCF of
{256,184,304}

(i)

5
(ii)

8
(iii)

9
(iv)

10
(v)

7

Question 20

20.

Find the HCF of
{480,1740,1980,1440}

(i)

58
(ii)

61
(iii)

59
(iv)

60
(v)

62

Question 21

21.

Find the LCM of
{9,4}

(i)

37
(ii)

36
(iii)

35
(iv)

39
(v)

33

Question 22

22.

Find the LCM of
{8,15}

(i)

119
(ii)

121
(iii)

117
(iv)

123
(v)

120

Question 23

23.

Find the LCM of
{14,12,4}

(i)

84
(ii)

85
(iii)

83
(iv)

81
(v)

87

Question 24

24.

Find the LCM of
{8,12,15,9}

(i)

362
(ii)

361
(iii)

359
(iv)

357
(v)

360

Question 25

25.

Find the LCM of
{36,24}

(i)

70
(ii)

71
(iii)

72
(iv)

73
(v)

74

Question 26

26.

Find the LCM of
{42,18}

(i)

128
(ii)

125
(iii)

126
(iv)

127
(v)

123

Question 27

27.

Find the LCM of
{110,190,80}

(i)

16720
(ii)

16723
(iii)

16718
(iv)

16721
(v)

16719

Question 28

28.

Find the LCM of
{360,420,510,540}

(i)

128519
(ii)

128520
(iii)

128523
(iv)

128517
(v)

128521

Question 29

29.

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

(i)

71
(ii)

72
(iii)

73
(iv)

70
(v)

75

Question 30

30.

Find the product of LCM and HCF of
{27,9}

(i)

243
(ii)

241
(iii)

245
(iv)

242
(v)

244

Question 31

31.

Find the product of LCM and HCF of
{22,9,12}

(i)

398
(ii)

394
(iii)

396
(iv)

397
(v)

395

Question 32

32.

Find the product of LCM and HCF of
{24,18,26,27}

(i)

2810
(ii)

2806
(iii)

2807
(iv)

2809
(v)

2808

Assignment Key