I need the answer as soon as possible Let n> 2 be a positive integer and r a primitive root of n. Supposethat a EZ is such that ar? = 1 (mod n), then a has order$(n)$(n) modulo nmodulo n2This optionO This option1 modulo nNone of the choices

Given: r is a primitive root of n. To find: ϕn2

Answered: Let n > 2 be a positive integer and r a…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Let n > 2 be a positive integer and r a primitive root of n. Suppose that a E Z is such that ar? = 1 (mod n), then a has order $(n) modulo n $(n) modulo n O This option O This option 1 modulo n None of the choices 2.