Question

Find out the factors of given numbers,

(i) 8 and 12
(ii) 10 and 20
(iii) 7 and 16
(iv) 18 and 32

Answer 1

(i) 8 and 12

Factors of 8 = 1,2, 4, 8
Factors of 12 = 1,2, 3, 4, 6, 12
Therefore, common factors of 8 and 12 = 1, 2, 4

(ii) 10 and 20

Factors of 10 = 1,2, 5, 10
Factors of 20 = 1, 2, 4, 5, 10, 20
Therefore, common factors of 10 and 20 = 1, 2, 5, 10

(iii) 7 and 16

Factors of 7 = 1 , 7
Factors of 16 = 1,2, 4, 8, 16
Therefore, common factors of 7 and 16 = 1

(iv) 18 and 32

Factors of 18 =1,2, 3, 6, 9, 18
Factors of 32 = 1,2, 4, 8, 16, 32
Therefore, common factors of 18 and 32 = 1, 2.