Thread: "Rare" Primes
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Old 2008-08-29, 13:39   #51
xilman
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May 2003
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Quote:
Originally Posted by Housemouse View Post
Can you please give me an example of one function that has an infinate number of values, but can be proven to have exactly 10 prime values?
I can.

Let f(x) be the function such that f(x) = x for 1<=x<=29 and f(x) = 4x for all all other values of x.


Paul

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