mersenneforum.org a 27 digit twin prime pair
 Register FAQ Search Today's Posts Mark Forums Read

 2019-04-08, 12:54 #1 enzocreti   Mar 2018 523 Posts a 27 digit twin prime pair I found this pair of 27 digit twin primes: 1- 149907114776274341482621993 2- 149907114776274341482621991 I would know if it is possible with Pari or Pfgw to find the next and the previous pair of twin primes?
 2019-04-08, 13:47 #2 LaurV Romulan Interpreter     Jun 2011 Thailand 2×11×397 Posts Yes, it is possible, and it takes less than a second to run. Code: gp > n=149907114776274341482621993; while((m=nextprime(n+1))-n>2, n=m); n %1 = 149907114776274341482622207 The other direction exercise for you.
 2019-04-08, 15:25 #3 enzocreti   Mar 2018 523 Posts 149907114776274341482621993 149907114776274341482621993 is the concatenation in base ten of the prime factors of 25!-1

 Similar Threads Thread Thread Starter Forum Replies Last Post hal1se Miscellaneous Math 13 2018-11-05 16:34 hydeer Lone Mersenne Hunters 9 2018-04-03 22:54 cuBerBruce Puzzles 3 2014-12-01 18:15 RienS Miscellaneous Math 15 2014-11-18 01:48 Joshua2 Math 15 2005-06-11 18:46

All times are UTC. The time now is 06:47.

Sat Sep 19 06:47:20 UTC 2020 up 9 days, 3:58, 0 users, load averages: 1.22, 1.41, 1.46