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What is the LCM of 18 28 and 48?

Answer:

18 = 2 x 3 x 3

28 = 2 x 2 x 7

48 = 2 x 2 x 2 x 2 x 3

2 is a common factor and occurs 4 times in 48, 3 occurs twice and 7 occurs only once

so LCM = 2x2x2x2x3x3x7 = 1008

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