How do I find my chromebook's serial number?

Option 1: The serial number is located on the bottom of the Chromebook, toward the upper-right corner.  (Example:  S/N# 5CD6365P8B)

Option 2: When starting the Chromebook on the login screen, press the ALT + V keys at the same time.  The serial number will appear in the upper-right corner of the screen.  (Example:  SN:  5CD6365P8B)