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
8

(i)

4 3
(ii)

2 4
(iii)

(-1) 3
(iv)

2 3
(v)

2 2

Question 2

2.

Find the prime factorization of
56

(i)

2 3

✕

10
(ii)

2 3

✕

4
(iii)

2 3

✕

7
(iv)

2 2

✕

7
(v)

2 3

✕

7 2

Question 3

3.

Find the prime factorization of
360

(i)

2 3

✕

6 2

✕

5
(ii)

2 3

✕

3 2

✕

3
(iii)

2 3

✕

3 2

✕

4
(iv)

2 3

✕

3 2

✕

5
(v)

2 4

✕

3 2

✕

5

Question 4

4.

Find the prime factorization of
4928

(i)

2 6

✕

4

✕

11
(ii)

2 6

✕

7

✕

11
(iii)

2 6

✕

6

✕

11
(iv)

2 6

✕

7

✕

13
(v)

2 7

✕

7

✕

11

Question 5

5.

Find the number of prime factors of
6

(i)

2
(ii)

3
(iii)

0
(iv)

1
(v)

4

Question 6

6.

Find the number of prime factors of
65

(i)

2
(ii)

3
(iii)

0
(iv)

4
(v)

1

Question 7

7.

Find the number of prime factors of
644

(i)

1
(ii)

4
(iii)

0
(iv)

2
(v)

3

Question 8

8.

Find the number of prime factors of
3000

(i)

2
(ii)

3
(iii)

0
(iv)

1
(v)

4

Question 9

9.

Find the total number of factors of
39

(i)

4
(ii)

5
(iii)

3
(iv)

1
(v)

7

Question 10

10.

Find the total number of factors of
92

(i)

5
(ii)

9
(iii)

7
(iv)

6
(v)

4

Question 11

11.

Find the total number of factors of
825

(i)

12
(ii)

11
(iii)

10
(iv)

15
(v)

13

Question 12

12.

Find the total number of factors of
6600

(i)

49
(ii)

50
(iii)

46
(iv)

48
(v)

47

Question 13

13.

Find the HCF of
{6,15}

(i)

5
(ii)

1
(iii)

2
(iv)

3
(v)

4

Question 14

14.

Find the HCF of
{34,48}

(i)

2
(ii)

3
(iii)

1
(iv)

5
(v)

0

Question 15

15.

Find the HCF of
{8,40,21}

(i)

0
(ii)

(-1)
(iii)

4
(iv)

2
(v)

1

Question 16

16.

Find the HCF of
{48,35,18,28}

(i)

3
(ii)

0
(iii)

2
(iv)

1
(v)

(-1)

Question 17

17.

Find the HCF of
{70,180}

(i)

11
(ii)

9
(iii)

7
(iv)

12
(v)

10

Question 18

18.

Find the HCF of
{410,390}

(i)

10
(ii)

9
(iii)

13
(iv)

11
(v)

8

Question 19

19.

Find the HCF of
{720,480,1000}

(i)

41
(ii)

40
(iii)

43
(iv)

37
(v)

39

Question 20

20.

Find the HCF of
{42,78,294,156}

(i)

6
(ii)

3
(iii)

9
(iv)

7
(v)

5

Question 21

21.

Find the LCM of
{9,6}

(i)

15
(ii)

19
(iii)

18
(iv)

17
(v)

20

Question 22

22.

Find the LCM of
{15,6}

(i)

31
(ii)

30
(iii)

32
(iv)

27
(v)

29

Question 23

23.

Find the LCM of
{9,4,12}

(i)

35
(ii)

38
(iii)

36
(iv)

37
(v)

34

Question 24

24.

Find the LCM of
{18,16,14,9}

(i)

1007
(ii)

1010
(iii)

1008
(iv)

1005
(v)

1009

Question 25

25.

Find the LCM of
{30,80}

(i)

240
(ii)

238
(iii)

241
(iv)

239
(v)

243

Question 26

26.

Find the LCM of
{270,105}

(i)

1888
(ii)

1889
(iii)

1893
(iv)

1890
(v)

1891

Question 27

27.

Find the LCM of
{50,150,60}

(i)

302
(ii)

299
(iii)

301
(iv)

297
(v)

300

Question 28

28.

Find the LCM of
{1080,300,120,780}

(i)

70202
(ii)

70201
(iii)

70200
(iv)

70197
(v)

70199

Question 29

29.

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

(i)

22
(ii)

25
(iii)

24
(iv)

23
(v)

27

Question 30

30.

Find the product of LCM and HCF of
{8,22}

(i)

177
(ii)

173
(iii)

175
(iv)

176
(v)

178

Question 31

31.

Find the product of LCM and HCF of
{22,9,14}

(i)

1385
(ii)

1384
(iii)

1388
(iv)

1386
(v)

1387

Question 32

32.

Find the product of LCM and HCF of
{4,9,18,27}

(i)

109
(ii)

107
(iii)

108
(iv)

110
(v)

106

Assignment Key