As we mentioned in previous page. In order to avoid using a very long number to represent the PageRank of web pages, Google has divided the Total PageRank into 10 ranges. This is the called Google Toolbar PageRank Number.

In summary there are some possible methods to divide the Real PageRank number into the 10 ranges - the Linear Scale Method, the Logarithmic Scale Method, Google Self-Judgement Scale Method, etc.... However nobody really know how Google scaling the 10 ranges as this is commercial secret.

Before going into a bit details, let's recall the simplified PageRank Formula again: Tips:

The Minimum Real PageRank Number = 0.15

The Maximum Real PageRank Number = 0.15 + 0.85 (Total pages indexed)

If there are 1,000,000,000 web pages on the WWW, the Total PageRank on WWW is 1,000,000,000. What is the Maximum Real PageRank Number? The answer is:

Maximum Real PageRank Number = 0.15 + 0.85(1000000000) = 850000000.15

## Maximum Real PageRank Number

Somebody may wonder if this is possible for a web page to achieve the Maximum Real PageRank Number. The answer is "Yes". If all web pages in the World Wide Wide have only link to a single web page. That web page will acheive the Maximum Real PageRank Number. The following diagram shows how the web page (My Page) achieve the Maximum Real PageRank Number. Okay. Let's discuss how the 10 scales of Google Toolbar PageRank Number can be transformed from the Real PageRank Number.

## Linear Scale Method:

The differences of PageRank value between PR1, PR2, PR3, PR4,........and PR10 were all equal. Most people believe that Google do not adopting this Linear Scale Method. This can be best represent by a graph as below: ## Logarithmic Scale Method:

The PageRank value are increased from PR 1 to PR 10 in Logarithmic Scale Method(i.e. exponential) . Many people do believe that Google is using this Logarithmic Scale Method. Why? Because many people find that this is fairly easy to get a Google Toolbar PageRank Number within PR 4. It becomes rather difficult to get a PR 5. The difficulty in getting a Toolbar PR Number a step higher up is like a exponential curve. This can be best represent by a graph as below: ## Logarithmic Scale Method:

Most people believe that Google do not follow a strict mathematical formula. Some even believe that Google may simply offer the web page with highest PageRank a Google Toolbar value of PR 10 and then the rest web pages are scaling accordingly.

## Conclusion of Google Toolbar PageRank Number

However this is not really important how Google divide the 10 ranges into Google Toolbar PageRank scale. The most important is try to get a higher real PageRank value for your web pages. Once your web pages have a high real PageRank value, they will have a higher Google Toolbar number.

From next pages, we will show you some examples how PageRank number is calculated and how the linking structures of your web pages can affect the PageRank number of each page. 