Question

find the LCM of 30, 72 and 840 by applying fundamental theorem of arithmetic​

Answer 1

30= 5×2×3

72= 2³× 3²

840= 2³×3×5×7

L C M= product of highest power of all

numbers

L C M= 5×2³×3²×7

L C M= 2520

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Answer 2

30=2*3*5

72=2*2*2*3*3

840=2*2*2*3*5*7

So the LCM is 12600.

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