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daveguy
on Jan 8, 2017
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The Riemann Hypothesis, explained
All primes. Not just the primes you choose. The set of the first n primes here would be {2,3,5,7}. The product plus 1 is 2
3
5*7+1 = 211 is prime.
pmiller2
on Jan 8, 2017
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[–]
The product of the first n primes + 1 is not always prime, though. See
https://en.m.wikipedia.org/wiki/Euclid_number
yen223
on Jan 8, 2017
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[–]
2*3*5*7*11*13 + 1 = 30031 = 59*509
Neither 59 nor 509 is in {2, 3, 5, 7, 11, 13}, so the proof still holds, but the resultant number is not a "prime" number.
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