Question

Using primr factor method find the hcf and lcm of 72,126&168

Answer 1

Answer:

Step-by-step explanation:

72=2³×3²

126=2×3²×7

168=2³×3×7

∴HCF(72,126.168)=2×3=6

∴LCM(72,126,168)=2³×3²×7=504

Now, LCM×HCF=6×504=3024

Product of three nos.=72×126×168=1524096

∴LCM×HCF≠ Product of three nos.

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