- #1
sunmaz94
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Homework Statement
a) For which values of a does ax = 1 have a solution in Z5?
b) For which values of a does ax = 1 have a solution in Z6?
c) For which values of a and m does ax = 1 have a solution in Zm?
Homework Equations
None.
The Attempt at a Solution
Answers:
a) All a ≠ 0
b) a = 1, 5
c) a and m have no common factors other than 1 [i.e., the gcd of a and m is 1].Please explain, in detail, why these are the answers and how one arrives at them. I honestly haven't the faintest clue. Thanks.