3 ms·Any "number system" (be it a field, ring, or multiplicative group) has a "1"by pmalynin 10y agoAny "number system" (be it a field, ring, or multiplicative group) has a "1"Smaug123 10y agoDepends on your definition of "ring"; for some people, a ring need not have a multiplicative identity. But yes, any number system worth its salt has at least a couple of integers in it.drdeca 10y agoWouldn't a ring without a multiplicative identity be a rng rather than a ring?Filligree 10y agoOnly if it started as a riiiing...Filligree 10y agoI was joking. :X