Samsung build number and rooting SM-G900P

I would like to root my Boost Mobile Samsung S5. I've read up enough to know that I need to be 100% about the model and software build version before proceeding with the root. My provider: Boost/Sprint Model: SM-G900P Build: mmb29m.g900pvpu3cpg1 Android 6.0.1 I've looked around and found confirmations for this build with one difference, the builds confirmed don't have the "1" at the end of the build I.D. Can anyone explain the significance of the 1 at the end of my build? Also will I need to reactivate my service if I root?