Re: probability of (2*p1*p2) + 1 being prime
- September 9 jtrjtrjtr2001 wrote:
> y = (2*p1*p2) + 1.Phil Carmody wrote:
> > Well, it's just like any arbitrary [odd] number of the same sizeI wrote:
> If q is a random odd prime other than p1 and p2,Jack Brennen wrote:
> then q does not divide y-1
> And y is not congruent to 1 mod 3, or to 1 mod 5,All 4 above posts were mailed September 9 but it took 5 days to
> or to 1 mod 7, etc.
deliver the posts by Jack and I. We are far apart and the posts
showed up the same minute so it seems like a Yahoo problem.
http://tech.groups.yahoo.com/group/primeform/message/8788 was delayed
from August 31 to September 5. Maybe the problem from
http://tech.groups.yahoo.com/group/yg-alerts/message/24 has not been
completely fixed yet. I'm currently posting through
http://tech.groups.yahoo.com/group/primenumbers/ where I haven't seen
a long delay.
Jens Kruse Andersen