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Number of Prime Numbers??

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Number of Prime Numbers??

by Cinji18 » Sat Sep 04, 2010 8:47 pm
Is there a way to find out the number of prime numbers within a given range without listing them out? For example, the number of prime numbers between 1 and 200, or between 1500 to 4050?

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by niksworth » Sat Sep 04, 2010 11:58 pm
There is no such way.

The only way to find primes is to individually check each number in the range for divisibility.
scio me nihil scire
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