Question

prime factorisation.
a. 56, 70
b. 64, 72
d. 100, 125
c. 81, 108
e. 98, 120 f. 135, 225
3. Find the HCF of the following number step by step explation​

Answer 1

a. 56 =2×2×2×7

70=2×5×7

hcf = 2×7=14

b. 64 =2×2×2×2×2×2

72 =2×2×2×3×3

hcf = 2×2×2=8

c. 100=2×2×5×5

125=5×5×5

hcf = 5×5 =25

d.81 =3×3×3×3

108 = 2×2×3×3×3

hcf = 3×3×3=27

e.98 =2×7×7

120 =2×2×2×3×5

hcf = 2

f. 135 =3×3×3×5

225 =3×3×5×5

hcf =3×3×5=45

Answer 2

Explanation:

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