EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Factors and Multiples

Grade : ICSE Grade VII

License : Non Commercial Use

Question 1

1.

Find the LCM of
{960,840,780,300}

(i)

436799
(ii)

436797
(iii)

436800
(iv)

436801
(v)

436803

Question 2

2.

The common multiples of 7 and 9 =

(i)

{63,126,189,252}
(ii)

{63,126,252,50}
(iii)

{63,189,252,181}
(iv)

{63,189,252,350}
(v)

{63,189,252,48}

Question 3

3.

Find the prime factorization of
350

(i)

2

✕

5 2

✕

9
(ii)

2 2

✕

5 2

✕

7
(iii)

2

✕

5 2

✕

4
(iv)

2

✕

5 2

✕

7
(v)

2

✕

5

✕

7

Question 4

4.

Find the HCF of
{18,26,36}

(i)

3
(ii)

0
(iii)

4
(iv)

2
(v)

1

Question 5

5.

Which of the following is a composite number?

(i)

37
(ii)

3
(iii)

19
(iv)

11
(v)

26

Question 6

6.

Find the total number of factors of
65

(i)

4
(ii)

6
(iii)

5
(iv)

1
(v)

3

Question 7

7.

Find the LCM of
{600,300,900}

(i)

1802
(ii)

1799
(iii)

1801
(iv)

1800
(v)

1798

Question 8

8.

Find all common factors of 37 and 17

(i)

{1}
(ii)

{1,37}
(iii)

{17}
(iv)

{1,17}
(v)

{37}

Question 9

9.

Find the number of prime factors of
65

(i)

0
(ii)

2
(iii)

3
(iv)

4
(v)

1

Question 10

10.

Find the HCF of
{112,88}

(i)

7
(ii)

9
(iii)

11
(iv)

5
(v)

8

Question 11

11.

The multiples of 5 =

(i)

{5,10,15,20,25,30}
(ii)

{5,15,20,25,30,26}
(iii)

{5,10,15,20,25,30,26,6}
(iv)

{5,10,15,20,29,11}
(v)

{5,10,15,20,25,30,29}

Question 12

12.

The multiples of 4 =

(i)

{4,8,12,16,20,24}
(ii)

{4,8,16,24,13,5}
(iii)

{4,12,16,20,24,13}
(iv)

{4,8,12,16,20,24,13,5}
(v)

{4,8,12,16,20,24,5}

Question 13

13.

The factors of 27 =

(i)

{1,3,9,27,10,4}
(ii)

{1,3,9,27}
(iii)

{1,27,4,2}
(iv)

{3,9,27,4}
(v)

{1,3,9,27,4}

Question 14

14.

Find the HCF of
{6,8}

(i)

2
(ii)

4
(iii)

1
(iv)

3
(v)

(-1)

Question 15

15.

Find the number of prime factors of
2025

(i)

3
(ii)

4
(iii)

2
(iv)

1
(v)

0

Question 16

16.

Which of the following is a prime number?

(i)

35
(ii)

43
(iii)

45
(iv)

48
(v)

26

Question 17

17.

Which of the following is an even number?

(i)

19
(ii)

47
(iii)

38
(iv)

27
(v)

25

Question 18

18.

Find the HCF of
{8,33,38,16}

(i)

1
(ii)

0
(iii)

2
(iv)

(-1)
(v)

3

Question 19

19.

Find the twin primes in the following

(i)

(3,7)
(ii)

(2,11)
(iii)

(3,2)
(iv)

(2,7)
(v)

(11,13)

Question 20

20.

The simplest form of the fraction
66
198
is

(i)

1
(ii)

1
5
(iii)

(
-1
3
)
(iv)

1
3

Question 21

21.

Reduce the fraction
240
1920

(i)

(
-1
8
)
(ii)

1
8
(iii)

3
8
(iv)

1
6
(v)

1
10

Question 22

22.

The factors of 7 =

(i)

{1,7,6,2}
(ii)

{2,6}
(iii)

{7,6}
(iv)

{1,7}
(v)

{1,7,2}

Question 23

23.

Which of the following is an odd number?

(i)

14
(ii)

47
(iii)

16
(iv)

26
(v)

4

Question 24

24.

Find all common factors of 8 , 25 and 18

(i)

{25}
(ii)

{1,25}
(iii)

{1}
(iv)

{1,8}
(v)

{4}

Question 25

25.

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

(i)

283
(ii)

281
(iii)

279
(iv)

278
(v)

280

Assignment Key