Will reseting my device to factory setting unroot and remove superuser? As the title says, if I reset my rooted nexus 4 to factory settings will it be unrooted relocked and superuser uninstalled?
No, root won't be removed by factory reset. If you want to remove it, then you should flash stock ROM; or delete the su binary from the system/bin and system/xbin and then delete the Superuser app from the system/app.