Is it true that having a PR is coming form the number of the inbound links.... as you estimate it.. how many inbound links to have a PR?
Yes Inbound Links or Incoming Links or Backlinks or Inward Links (same thing ) are necessary for PR. The quantity can not be estimated because it depends on quality, not quantity.
Agree.... even you have many backlinks that is not quality you can't tell whether you can achieve high PR or not coz it's about the quality backlinks... still the quality has effect on this PR thing...
ahh ok... thanx for sharing your idea... i'm just only confused..so if PR has nothing to do with SERP, therefore PR is just only a decoration.....