Form man proc

loadavg
The load average numbers give the number of jobs in
the run queue averaged over 1, 5 and 15 minutes.
They are the same as the load average numbers given
by uptime(1) and other programs.


And I ran cat /proc/loadavg on my server

root@myserver [/]# cat /proc/loadavg
0.05 0.04 0.00 1/164 27399


Can anybody explain what is the meaning of the last two numbers?

1/164 - 164 processes and 1 running ?
27399 - PID ?