Question

Find the hcf and lcm of 144 180 and 192 by using prime factorization method

Answer 1

144 = 2×2×2×2×3×3

180 = 2×2×3×3×5

192 = 2×2×2×2×2×2×3

HCF = 2×2×3 = 12

LCM = 2^8×3^3×5

= 256×27×5

= 34560