Find out the factors of given numbers,(i) 8 and 12(ii) 10 and 20(iii)

1.	Find out the factors of given numbers,(i) 8 and 12(ii) 10 and 20(iii) 7 and 16(iv) 18 and 32
Answer» (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.

Find out the factors of given numbers,(i) 8 and 12(ii) 10 and 20(iii) 7 and 16(iv) 18 and 32

Answer»

(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.