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I'm am looking for a smart way to make the following conditional in Mathematica:

,Code (Text):if[i == 3*{1,2,3,4,5,N}, ....]

ï.e. if the variableiis a multiple of 3 up to some integerN. How can I do this smartest in Mathematica?

Best,

Niles.

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# Mathematica: Conditionals

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