KnowraIdeal class groupLinked fromLinked fromThe 13 pages that link to Ideal class group, each with the reason it gives.All 13Related 11Narrower topic 2Hilbert class fieldNarrower topic: Its elements correspond exactly to automorphisms of the Hilbert class field.Kummer–Vandiver conjectureNarrower topic: Its order is the class number whose divisibility the conjecture restricts.