$$\( x \)$$ is an integer.   $$\(A=\{x: x\)$$ is an odd number $$\(\}\)$$ $$\(B=\{x: x\)$$ is a multiple of 3$$\(\}\)$$ $$\(C=\{x: x\)$$ is a prime number $$\(\}\)$$ Find $$\(\mathrm{n}(A \cap B \cap C)\)$$. .............................................

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