---
tag: 0B85S2V2DR
kind: concept
name: Order of a group
msc: [20A05]
sources:
  - url: https://en.wikipedia.org/wiki/Order_(group_theory)
    locator: lead section
same_as:
  wikidata: Q589491
  wikipedia: Order (group theory)
---

## Summary

The order of a group is the number of its elements.
A group with infinitely many elements has infinite order.