piclist 2017\09\06\155622a >
Thread: Prime numbers
face BY : peter green email (remove spam text)

On 06/09/17 17:27, Isaac M. Bavaresco wrote:
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> thus Q is prime.
This is where you go wrong.

There may be prime numbers which are larger than Pn but smaller than Q. Some of these could conceivably be factors of Q.

For example

(3x5x7x11)+2 = 1157 = 13*89

So while this proves there is at least one prime that is not on your list (and hence proves there are infinitely many primes) it does not provide an efficient method for actually finding large primes.
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