If you forget your password, Facebook delivers this 6-digit numeric string to your registered email address or mobile phone to verify ownership of the account before allowing a password change. 📲 How to Get Your Six Digit Code
Because someone (maybe you) enabled Two-Factor Authentication. The password verifies what you know ; the code verifies what you have (your phone). facebook six digit code
When you receive a Facebook six digit code, follow these steps: If you forget your password, Facebook delivers this