runlevel + what is runlevel 5 3 in redhat linux

we know that runlevl of multi user mode is N 5 but on our redhat 7.2 we get the following runlevel 5 3 what is the meaning of this run-level ? how to change this machine to multi user mode ( full permissions ) and when we do who -r we get run-level 3 last=5 Note - we perform reboot/init 6 , but still we are in run-level 3