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What do the numbers in brackets after WeChat mean?

The numbers in brackets behind this platform are usually the comments of WeChat friends, the membership number of WeChat group chat, and the version number of WeChat.

1. Notes of WeChat friends: When adding notes to WeChat friends, brackets and numbers will appear after nicknames. Numbers are random and automatically generated according to their nicknames and adding time. This number is used to distinguish different WeChat friends.

2. Member number of WeChat group chat: In WeChat group chat, each member has a unique number. The higher the number, the later the time to join the group chat. When someone joins the group chat, a prompt message will appear in the group chat, showing the number of the new member.

3. Version number of WeChat: In some cases, the version number of WeChat may also appear in brackets. When WeChat is updated, the numbers in brackets may change.