Question

find the HCF and LCM by prime factor method 120 and 150 or 90 ​

Answer 1

Answer:

We have

120= 2×2×2×3×5= 2^3×3×5

150= 2×3×5×5=2×3×5^2

90= 2×3×3×5=2×3^2×5

So HCF (120,150,90)= 2×3×5=30

LCM(120,150,90)=2^3×3^2×5^2

=9000

Hope it helps......

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