Question

maths
Exercise no- 3.1
Q1 Write all
all the factors of the following
numbers.
a) 24 (b) is (c) 21
d) 2] (e) 12 (f 120
18. (h) 23 (1) 36
g​

Answer 1

Answer:

8 H 23 I 36

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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

(a) 24 = 1 x 24 = 2 x 12 = 3 x 8 = 4 x 6 = 6 x 4

ˆ´ Factors of 24= 1,2,3,4,6,12,24

(b) 15=1 x 15 = 3 x 5 = 5 x 3

ˆ´ Factors of 15 = 1, 3, 5, 15

(c) 21=1 x 21 = 3 x 7 = 7 x 3

ˆ´ Factors of 21 = 1, 3, 7, 21

(d) 27= 1 x 27 = 3 x 9 = 9 x3

ˆ´ Factors of 27 = 1, 3, 9, 27

(e) 12 = 1 x 12 = 2 x 6 = 3 x 4 = 4 x 3

ˆ´ Factors of 12 = 1, 2, 3, 4, 6, 12

(f) 20=1 x 20 = 2 x 10 = 4 x 5 = 5 x 4

ˆ´ Factors of 20 = 1, 2, 4, 5, 10, 20

(g) 18=1 x 18 = 2 x 9 = 3 x

ˆ´Factors of 18 = 1, 2, 3, 6, 9, 18

(h) 23=1 x 23

ˆ´Factors of 23 = 1, 23

(i) 36== 1 x 36 = 2 x 18 = 3 x 12 = 4 x 9 = 6 x6

ˆ´ Factors of 36 = 1, 2, 3, 4, 6, 9, 12, 18, 36

Step-by-step explanation:

Answer 2

Step-by-step explanation:

24=1,2,3,4,6,12,24 ,. 21=1,3,7,21. 2=1,2. 12=1,2,3,4,6,12 ., 120=1,2,3,4,5,6,8,10,12,15,120.,. 18=1,2,3,6,18. ., 23=1,23,. 36=1,2,3,4,6,9,12,18,36 these are the factors of above numbers