KnowraUnique factorizationLinked fromLinked fromThe 8 pages that link to Unique factorization, each with the reason it gives.All 8Related 4Narrower topic 1Compared with 3Ring of integersCompared with: Its failure in some rings motivated the shift from elements to ideals.Dedekind domainCompared with: A nontrivial ideal class group obstructs unique factorization of elements.Stark–Heegner theoremCompared with: For these quadratic integer rings, class number one is equivalent to unique factorization of elements.