Question

EXERCISE 3.1 Write all the factors of the following numbers: (a) 24 (b) 15 (c) 21 (d) 27 (e) 12 (f) 20 (g) 18 (h) 23 (i) 36 2. Write first five multiples of: (a) 5 (b) 8 (c) 9 3. Match the items in column 1 with the items in column 2. Column 1 Column 2 (i) 35 (a) Multiple of 8 (ii) 15 (b) Multiple of 7 (iii) 16 (c) Multiple of 70 (iv) 20 (d) Factor of 30 (V) 25 e] factor of 50 A factor of do​

Answer 1

(1)

a) 24 - 1,2,3,4,6,8,12,24

b) 15 - 1,3,5,15

c) 21 - 1,3,7,21

d) 27 - 1,3,9,27

e) 12 - 1,2,3,4,6,12

f) 20 - 1,2,4,5,10,20

g) 18 - 1,2,3,6,9,18

h) 23 - 1,23

I) 36 - 1,2,3,4,6,9,12,18,36

(2)

a) 5 - 5,10,15,20,25

b) 8 - 8,16,24,32,40

c) 9 - 9,18,27,36,45

(3)

a) 35 - multiple of 7

b) 15 - factor of 30

c) 16 - multiple of 8

d) 20 - factor of 20

e) 25 - factor of 50