Suppose , p = Z such that p is prime. If = 1 (mod p) 7281 (mod p) find the least positive integer e such that it must be true (for any possible value of a satisfying the congruences above) that x² = 1 (mod p). (Hint: consider taking products of 525, 728 or try small examples like x = 2, p = 7.) Type your answer... 2525 x
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