Why does my phone keep telling me I need to do a software update?

[AC Question]

I have a samsung galaxy core prime and it told me I had a software update, so I updated it, but then the notification came up again. I thought there was another update, so I updated it again, but after I updated it it told me that I had a software update. I have updated it three times now but the message keeps coming up and I don't know why. Please help.

 

[ManiacJoe]

samsung galaxy core prime

Which version of android?
Which carrier?