Question

which is the least 3 digit number which is exactly divisible by 18, 28 and 72​

Answer 1

Answer:

First determine the smallest multiplicator for 18,28,72 , noted P(18,28,72)

To do so use primary number decomposition:

18=3^2*2

28=7*2^2

72=3^2*2^3

then: P(18,28,72)=2^3*3^2*7=8*9*7=504

So the number x you are looking for is solving the following equation:

x+8=P(18,28,72) => x=496

PLZ MARK AS BRIANLIEST AND THX FOR THE SUPERB QUESTION

Answer 2

Answer:

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