The product of any three consecutive natural numbers is divisible by 9.prove or find a counterexample

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can anyone give me feedback on my solution false counterexample: n(n+1)(n+2) let n= 1 1(2)(3) =6 is not divisible by 9

is this correct?

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Indeed, $1\cdot2\cdot3=6$ is not divisible by $9$, so your counterexample works perfectly well.