mersenneforum.org Largest known prime p such that 6p-1 and 6p+1 are prime?
 Register FAQ Search Today's Posts Mark Forums Read

2016-04-08, 21:15   #12
science_man_88

"Forget I exist"
Jul 2009
Dumbassville

203008 Posts

Quote:
 Originally Posted by Batalov In addition to what Charles wrote, infinitude of composite members of any sequence has nothing to do with the infinitude of prime members. sm88, you need to start thinking at least about the basic properties of infinities: that is, (even for complementary sets, e.g. a set "A" and a set of all others "non-A"): - a sum of a finite set and and infinite set is an infinite set; - a sum of an infinite set and and infinite set is an infinite set, so - knowing that one subset is infinite (e.g. "non-A") gives you no information about its complement's infinitude.
okay thanks.

, the local king of the idiots.

Last fiddled with by science_man_88 on 2016-04-08 at 21:15

 2016-04-11, 20:34 #13 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 23A716 Posts For kicks and giggles, I found a larger triple set: 23660119537*2^18001-1 = p (5430 digits) 3*23660119537*2^18002-5 = 6p-1, twin 3*23660119537*2^18002-7 = 6p+1, twin

 Similar Threads Thread Thread Starter Forum Replies Last Post sudaprime Miscellaneous Math 11 2018-02-05 08:10 dabaichi News 561 2013-03-29 16:55 Unregistered Information & Answers 24 2008-12-13 08:13 amcfarlane Math 6 2004-12-26 23:15 wfgarnett3 Lounge 7 2002-11-25 06:34

All times are UTC. The time now is 05:03.

Tue Sep 29 05:03:29 UTC 2020 up 19 days, 2:14, 0 users, load averages: 2.16, 1.53, 1.45