What do they mean by classify all groups of a certain order

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The discussion focuses on classifying all groups of a certain order, specifically the order 115, which factors into 5 and 23. The conclusion drawn is that the groups of order 115 are isomorphic to the cyclic group Z115 due to the fact that 5 does not divide 22, confirming that all groups of this order are indeed isomorphic to Z115.

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Bachelier
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what does it mean.

I'm thinking list all groups of such order

for instance. 115 = 5* 23

hence Z5⊕ Z23 ≈ Z115 ?
 
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never mind I got it. 5 doesn't divide 22, hence for all grps they are iso to Z115
 

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