Hi, The following is a challenge question that was set, which i do not know how to do; The following is the defintion that was given to us: Can anyone do this problem.
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Hi Let a positive integer, distincts even primes. The group of units of the ring is isomorphic to where and is: if if if If I'm not wrong, that should be sufficient to prove that are the only solutions; but I let you show this, or disprove it
Thanks for the help; I should be able to slove this problem know.
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