Re: [PrimeNumbers] Re: Arithmetic progression
> 40 digits!?!?!?!ok ok - it was just an example, there are much larger ones - it was the
> What's wrong with x^2+x+1077881853647981 ?
> x^2+x+5565451343405111 has no factors under 250.
first one I made when I started investigating 2 and a half years ago :-)
- "mbhawkuk" <mdb36@...>wrote:
> > > Now I wish look for the a such that x^2-x+a all are prime forDear Michael:
> > > x=0,1,2,...,k, and k>41
> > Yup, OK, I wasn;t too concerned with hunting for the primes that
> > time. However others were, and are. I beleive that there are people
> > who are using the ultra-dense QPs defined on by the A values on that
> > page in order to find runs of primes.
> If people are interested in these forms and the ultra-dense sequences
> you can produce, take a look at the archives of the primeform group,
> messages 658, 667, 684 and replies to them go into this in quite a lot
> of detail. For a taster - the form
> has no factors < 200 for any n, and has only ~40 digits, compared to
> the 82 digits of the k.199#+1 form. The disadvantage is that it is
> time consuming to find these forms, and also time consuming to prove
> At one stage I was considering attempting to find an ultra dense
> triplet region in order to have an easy way to break the triplet
> record, unfortunately that is very difficult and I didn't ever find
> anything useful. The other disadvantage is you end up with numbers
> with no short form, which are generally discouraged from the prime
> pages database.
Thank you very much for your direction.
I need the practical number a such that x^2-x+a all are prime for x=0,1,2,...,k, and k>41 or up the
larger number c , there is no such a.
My PC very poor, and sorry, I do't know the program.
In theory my recursive formula Tn is a functionall algorithm, it can become a program. although like
Phil said Not discouraged really, simply much less convenient.
I had submited my k-tuple prime conjecture to the Journal of number theory, if ,felicity, it is accepted,
I will quote above date, at least the date shall publish in the
Please anyone help me.