Question

find the lcm and hcf of 144and90 and by prime factorization method​

Answer 1

hcf=18

lcm=1120

Step-by-step explanation:

144=2×2×3×2×2×3

90=2×3×3×5

therefore common factors are, 2, 3,5

so the hcf is 18:2×2×3

and lcm is there for 2×2×3×2×2×5×2