Thread: Other Primes
View Single Post
Old 2019-04-19, 23:31   #190
Batalov
 
Batalov's Avatar
 
"Serge"
Mar 2008
Phi(3,3^1118781+1)/3

3·5·599 Posts
Default

Quote:
Originally Posted by R. Gerbicz View Post
That is just painful. I mean the ecpp proof for the hard number when you have a much cheaper way, searching a better form.

Don't need to run two variables, fix u, then run v in arithmetic progression. Use sieving.
Exactly! This new thingy completely misses the precious beauty of Ken Davis' construction.
Surely now, 10 years later, one can repeat Ken's trick to find a couple 40,000-digit sexy primes.

I added a little friendly competition thread. Have some fun!
Batalov is offline   Reply With Quote