The Nth Prime Page
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http://www.math.princeton.edu/~arbooker/nthprime.html  


Andrew Booker  
A form into which you can enter a value for n, from 1 to 10^12, inclusive. The server will return the nth prime number (counting 2 as the first). Commas and scientific notation (e.g. 1.0e12) are allowed. Also a Pi function: enter a value for x, from 1 to 3*10^13. The server will return pi(x), the number of primes not exceeding x. With a link to a description of the algorithm used.  


Levels:  High School (912), College 
Languages:  English 
Resource Types:  Calculators, Web Interactive/Java 
Math Topics:  Prime Numbers, Pi 
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