# Sundaram's Sieve

Issue 50March 2009

### Hint for step 3

Turn the statement "if *N* does not lie in the array, then 2*N* + 1 is prime" into its logical equivalent "if 2*N* + 1 is not prime, then *N* lies in the array".

Got it, on to the conclusion;

No way, show me the solution.

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