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For a fixed positive integer n if D= |(n...

For a fixed positive integer n if `D= |(n!, (n+1)!, (n+2)!),((n+1)!, (n+2)!, (n+3)!),((n+2)!, (n+3)!, (n+4)!)|= the show that D/((n!)^3)-4` is divisible by n.

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