Question

Find HCF of 54, 72 and 90 by prime factorisation method​

Answer 1

Answer:

54=1,2,3,6,9,18,27,54

72=1,2,3,4,6,8,9,12,18

Answer 2

➡54 = 3×2×3×3⬅

➡72= 2×2×3×3×2⬅

➡90 = 5×2×3×3⬅

Answer=> 2×3×3 = 18