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Shaun
Shaun
5:23 PM
Is there a standard presentation for the group of units modulo $n$? It'd save me some time if someone could let me know it before I have a deeper look into the literature.
 
 
4 hours later…
Shaun
Shaun
9:43 PM
in Mathematics, 2 hours ago, by Tobias Kildetoft
@Shaun Yes, the group of units modulo $n$ is a direct product coming from CRT, and each factor is either cyclic or has two factors.
 

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