36 Unique factorization domains In Z, we can factor 6 as 2 Â· 3 = 3 Â· 2 = (â2) Â· (â3) = (â3) Â· (â2). In a certain sense,all of these factorizations are the same.Deï¬nition 36.1 Two elements in a ring R are associates if one is a unit of R times theother.
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As Easter is always a Sunday, many countries in the world also have Easter Monday as a public holiday. Some retail stores, shopping malls, and restaurants are closed on Easter Sunday. Good Friday, which occurs two days before Easter Sunday, is also a public holiday in many countries, as well as in 12 U.S. states.