EduSahara™ Worksheet

EduSahara™ Assignment

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

Chapter : Real Numbers

Grade : CBSE Grade X

License : Non Commercial Use

Question 1

1.

Find the prime factorization of
32

(i)

2 4
(ii)

5 5
(iii)

2 5
(iv)

2 3
(v)

2 6

Question 2

2.

Find the prime factorization of
99

(i)

3 2

✕

13
(ii)

3 2

✕

11 2
(iii)

3 2

✕

11
(iv)

3 -1

✕

11
(v)

3 2

✕

10

Question 3

3.

Find the prime factorization of
616

(i)

2 4

✕

7

✕

11
(ii)

2 2

✕

7

✕

11
(iii)

2 3

✕

7

✕

8
(iv)

2 3

✕

7

✕

11
(v)

2 3

✕

10

✕

11

Question 4

4.

Find the prime factorization of
1152

(i)

2 6

✕

3 2
(ii)

2 7

✕

1
(iii)

2 7

✕

3 2
(iv)

2 7

✕

3 3
(v)

4 7

✕

3 2

Question 5

5.

Find the number of prime factors of
35

(i)

1
(ii)

0
(iii)

4
(iv)

2
(v)

3

Question 6

6.

Find the number of prime factors of
74

(i)

3
(ii)

2
(iii)

4
(iv)

0
(v)

1

Question 7

7.

Find the number of prime factors of
270

(i)

3
(ii)

1
(iii)

2
(iv)

4
(v)

0

Question 8

8.

Find the number of prime factors of
8736

(i)

5
(ii)

7
(iii)

3
(iv)

4
(v)

1

Question 9

9.

Find the total number of factors of
40

(i)

11
(ii)

5
(iii)

9
(iv)

8
(v)

7

Question 10

10.

Find the total number of factors of
51

(i)

6
(ii)

1
(iii)

4
(iv)

3
(v)

5

Question 11

11.

Find the total number of factors of
1188

(i)

25
(ii)

23
(iii)

24
(iv)

27
(v)

22

Question 12

12.

Find the total number of factors of
6075

(i)

17
(ii)

18
(iii)

21
(iv)

15
(v)

19

Question 13

13.

Find the HCF of
{18,12}

(i)

7
(ii)

5
(iii)

8
(iv)

3
(v)

6

Question 14

14.

Find the HCF of
{9,36}

(i)

9
(ii)

7
(iii)

10
(iv)

11
(v)

8

Question 15

15.

Find the HCF of
{38,26,20}

(i)

4
(ii)

2
(iii)

(-1)
(iv)

1
(v)

3

Question 16

16.

Find the HCF of
{4,30,24,18}

(i)

2
(ii)

3
(iii)

4
(iv)

1
(v)

0

Question 17

17.

Find the HCF of
{360,760}

(i)

38
(ii)

41
(iii)

39
(iv)

40
(v)

43

Question 18

18.

Find the HCF of
{720,1920}

(i)

240
(ii)

238
(iii)

241
(iv)

243
(v)

239

Question 19

19.

Find the HCF of
{2400,360,600}

(i)

123
(ii)

118
(iii)

121
(iv)

120
(v)

119

Question 20

20.

Find the HCF of
{260,320,310,160}

(i)

10
(ii)

9
(iii)

7
(iv)

13
(v)

11

Question 21

21.

Find the LCM of
{6,9}

(i)

18
(ii)

21
(iii)

16
(iv)

19
(v)

17

Question 22

22.

Find the LCM of
{14,18}

(i)

123
(ii)

126
(iii)

125
(iv)

129
(v)

127

Question 23

23.

Find the LCM of
{4,8,9}

(i)

75
(ii)

73
(iii)

72
(iv)

71
(v)

70

Question 24

24.

Find the LCM of
{9,6,12,8}

(i)

72
(ii)

73
(iii)

75
(iv)

69
(v)

71

Question 25

25.

Find the LCM of
{600,240}

(i)

1203
(ii)

1200
(iii)

1201
(iv)

1198
(v)

1199

Question 26

26.

Find the LCM of
{204,36}

(i)

613
(ii)

611
(iii)

615
(iv)

612
(v)

610

Question 27

27.

Find the LCM of
{240,40,320}

(i)

960
(ii)

959
(iii)

957
(iv)

963
(v)

961

Question 28

28.

Find the LCM of
{168,84,228,192}

(i)

25539
(ii)

25535
(iii)

25533
(iv)

25537
(v)

25536

Question 29

29.

Find the product of LCM and HCF of
{8,4}

(i)

32
(ii)

31
(iii)

33
(iv)

30
(v)

34

Question 30

30.

Find the product of LCM and HCF of
{12,10}

(i)

120
(ii)

119
(iii)

121
(iv)

122
(v)

118

Question 31

31.

Find the product of LCM and HCF of
{6,28,21}

(i)

84
(ii)

83
(iii)

81
(iv)

87
(v)

85

Question 32

32.

Find the product of LCM and HCF of
{9,24,8,21}

(i)

502
(ii)

507
(iii)

504
(iv)

503
(v)

505

Assignment Key