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Even if they are successive then the product plus one might not be prime, since the product plus one is so much larger than p_n, there might be a prime that div
by kosievdmerwe 7y ago
Even if they are successive then the product plus one might not be prime, since the product plus one is so much larger than p_n, there might be a prime that divides it (and likely at least 2).
The first non-prime example is 2x3x5x7x11x13 + 1 which equals 59 x 509
- _Microft 7y agoSure, see my first post about that. I amended it shortly after I posted but it felt wrong to remove the part that people responded too already.