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• Greeting Jens,   Are they the same kind of 7 primes all ending in 9 (I think you gave me few weeks back)?
Message 1 of 10 , May 24, 2010
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Greeting Jens,

Are they the same kind of 7 primes all ending in 9 (I think you gave me few weeks back)?
11108195956680805165653650502135350605769090617575464617311539
11108195956680805165653650502135350605769090617575464617311599
11108195956680805165653650502135350605769090617575464617311649
11108195956680805165653650502135350605769090617575464617311659
11108195956680805165653650502135350605769090617575464617311739
11108195956680805165653650502135350605769090617575464617311949
11108195956680805165653650502135350605769090617575464617311989

Althought I found the middle prime * 7 from my 2012 research, I still don't understand what is their secret?

Anyone can shed a light please?

Thank you all.

Ali
God > infinity
www.primalogy.com

________________________________
From: Jens Kruse Andersen <jens.k.a@...>
Sent: Mon, May 24, 2010 10:16:43 PM

Andrey Kulsha wrote:
> Let f(x) be a quadratic polynomial with integer coefficients:
>
> f(x) = ax^2+bx+c

For an arbitrary quadratic it's trivial to find 7 primes with a
brute force search of small coefficients. Here is a double:
f(x) = 2*x^2+36*x-37 starting at p=5 or p=73.

--
Jens Kruse Andersen

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