If that's not a thing you intend to take place (as well as you shouldn't), you can navigate the issue by removing your phone number from the website as well as establishing two-factor authentication up using an authentication application instead.
How Do You Remove Phone Number From Facebook
To eliminate your phone number from Facebook most likely to the Settings menu on your account (you arrive by clicking the arrowhead on top ideal side of the page) and then Your Facebook Info complied with by Sight under the Access Your Information label. Within that menu, you'll want to select Personal Info and then Your Contact Information. When you see your phone number, struck that delete switch.
To Remove a smart phone number:
-Click in the leading right edge of your Facebook page.
-Click Settings, then click Mobile in the left sidebar.
-Click Remove listed below the number you 'd like to Remove.
-Click Remove Phone to verify.
Afterward, select Safety and also Login from that main Settings page and after that Establish two-factor authentication. From there you ought to have the ability to personalize your two-factor Settings, specifically to make sure that you're utilizing an authenticator app (such as Google Authentication) rather than your contact number for that additional layer of security.