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in reply to Re^2: Unable to Understand grep and hash use for prime no.
in thread Unable to Understand grep and hash use for prime no.

Yes that's right, Dave. Coincidentally the sieve technique came up here only three weeks ago when a poster was trying to check a conjecture about Recaman's sequence. In thinking about primes, I did consider XS and C++ funnily enough, until I realised that prime or not is conceptually boolean and can be packed down to bits, so XS and C++ might be less urgent. Nevertheless I totally applaud the work you've done and XS and C++ is a very good choice.

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