Re: Special twin primes of the form ---

On 7 Dez., 16:46, Danny <fasttrac...@xxxxxxxxxxxxx> wrote:
Robert Israel wrote!
It really wasn't hard to find 30-digit examples, such >>as
100000000000000000000000188781.
This is interesting and should be tested more!
The probability that any random odd integer that
is not a 0(mod 3or5) could be prime when observing
primes => than the one you found.
In other words given the same range would you have a
better chance of finding primes with p^4-2 than just
randomly searching a prime range say of (sci.notation)
e+29 through e+35?

I meant to say first finding the larger (p) twin between
e+29 through e+35 and therefore as in your case p^4 -2
would be a prime search in areas => e+116.

What are the largest known twin primes?

See http://primes.utm.edu/top20/page.php?id=1

The currently (Dec 2007) largest known pair has 58711 decimal digits.

Hugo


Dan

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