Can anyone explain this?!

[ziftasonicfan]

Hi guys! I've been suffering from this strange problem and its bugging me a lot.
when i log into face book through my browser, specifically chrome. This SAME number always appears? I'm having a hunch this person who uses this number is hacking my phone or tracking me? I do not know what to do about it?
i heard before its normal to see this sometimes on fb, but the same number everytime? you gotta be joking something is wrong.
https/ibb.co/etiBTx

upload the photo

 

[hang-the-9]

Delete your saved data and form info in Chrome, see if it comes back. Change your PIN on the phone, your PW for your email and Facebook.

 

[ziftasonicfan]

Delete your saved data and form info in Chrome, see if it comes back. Change your PIN on the phone, your PW for your email and Facebook.

I tried IT CAME BACK! AGAIN

 

[hang-the-9]

Did you change the Facebook password also? Did you contact Facebook support to check with them if someone is logging onto your account from a different area than you?