>>  (Only the same 8 numbers within any given 30 sequentially numbered
>>  group are potentially prime).

> Except for 0 to 30, which has 10 or 11 primes (depending on how you
> feel about "1") ?  Even without 2, there are still more than 8 
> primes.

Error 314159:     

    Invalid range specified 
    Range 0 - 30 contains more than 30 numbers.
    Please respecify.

Bzzzt

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