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Find the number of non-zero elements in the field $Z_p$, where $p$ is an odd prime number, which are squares, i.e. of the form $m^2$; $m \in Z_p$; $m \neq 0$.

please help how can i solve this problem? the number of nonzero element is $p-1$ here

  • 9
    The title does not reflect the question.2012-09-19

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