how can I know if my samsung galaxy j5 have SDK 20 SDK 21 SDK 22 or SDK 23 processor

I have a samsung galaxy galaxy j5 ( SM-J500FN) with an ARM kernel architecture with root access.
I want to install xposed framework but I don't know which of SDKs processor ( 20 21 22 23) my phone is or if its even like that
Sorry guys if you find it easy to answer but I just a dummy who wants to install xposed framework

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