Helpful Equation:

x^(p-1) = 1 mod p


OK, so, can someone explain this to me a little more??? Gracias.


x^(25) - 1 = 0

x^(25) = 1

The order of x is a factor of 25. Since the order of Z_37 - {0} is 36, the order of x is 1, i.e. 1 is the only solution of x^(25) - 1 = 0 in Z_37 - {0}.

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