Let $F$ be a field. If $F^*$ is a cyclic group, must $F$ be a finite field? (It's well-known that if $F$ is a finite field, $F^*$ is a cyclic group).
Thank you in advanced.
2026-03-28 14:00:20.1774706420
Let $F$ be a field. If $F^*$ is a cyclic group, must $F$ be a finite field?
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