Page rank (pr) is one of the the mathematical methods google uses to determine a webpage's relevancy and inportance. In other words it determines a webpage between no 1- 10. The formula of pr as follows
PR(u)=(1-d)+d*SUM(PR)V/N(v)]}
where u = Linked page
v= Linking page
N(v) Number of out bound links on V
d= dumping factor which is 0.8
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