Where in Pi Is My Prime?

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Have you ever wondered where primes occur in the digit expansion of ? For instance, 31 occurs immediately—as does 314159—and 2 occupies position 7. In general, the more digits a prime has the more difficult it is to spot its occurrence within . This Demonstration allows you to choose a prime number from a configuration of 10 primes and search through the first million digits of .

Contributed by: Jaime Rangel-Mondragon (March 2011)
Open content licensed under CC BY-NC-SA


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