Question

Calculate the HCF of following numbers by prime factorization method.

a.) 54 and 21

b.)80, 12 and 18


please answer correctly...need urgently

Answer 1

Answer:

a)54=2×3×3×3

21=3×7

HCF=7

b)80=2×2×2×2×5

12=2×2×3

18=2×3×3

HCF=2

Answer 2

You're answer

a) HCF = 7

b) HCF = 2