How to determine the rdfg number?

Folks,

I need to add new R1/R2 devices to an existing DG and establish by executing the commands:

symrdf -sid xxxx -rdfg <rdfg number> -f pair.txt createpair -type RDF1

symrdf -sid xxxx -rdfg <rdfg number> -f pair.txt establish -full.

How do i determine the rdfg number?. If i do a query on the dg, i can see the following info in the output:

RDF (RA) Group Number : 4 (03)

Does this give me the rdfg number?.If yes, which one out of the two numbers "4" & "03" is the rdfg number?.

Please assist!. Thank you.