How to find what R/3 master data related in CRM

Hi friends

How to find what is R/3 sales org in CRM

Like wise pricing condition procedures ?

Please some one can help me on this.

Ex:

R/3 sales org : 1001(four characters)

CRM : O 40000000( eight characters)

where can I check 1001 is O 40000000 --?

Thanks

Kris