Talk:List of prime numbers

message: :The following is a closed discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review after discussing it on the closer's talk page. No further edits should be made to this discussion. 
The result of the move request was: Withdrawn.  Dan Bloch (talk) 17:23, 2 February 2022 (UTC)
replies: text: List of prime numbers →  – Current title is incorrect.  When this article was first created it was one list, but now it's a lot of lists. Dan Bloch (talk) 04:38, 31 January 2022 (UTC)
replies: text: We have 114,000 mainspace pages starting with "List of". Based on limited sampling and personal experience, I do think lots of them have multiple lists. PrimeHunter (talk) 08:22, 31 January 2022 (UTC)
thread_title:  Requested move 31 January 2022 

message: I think it would be nice to note for some/all of the types of primes listed whether there are (proven) infinitely many such primes, (proven) finitely many, conjectured infinitely/finitely many, or unknown (no conjecture made, e.g. because there is no known heuristic suggesting finiteness or infinitude). Joel Brennan (talk) 14:10, 10 May 2022 (UTC)
thread_title:  Finiteness and infinitude of types of primes 

message: What about 0? Like 1, 0 is neither prime or composite. Nate-Dawg921 (talk) 18:04, 23 November 2022 (UTC)
replies: text: Right. I don't think this list should mention that. Many sources discuss whether 1 is prime but not 0. PrimeHunter (talk) 20:22, 23 November 2022 (UTC)

text: And what about -17?  Or the square root of 2?  This article is only concerned with positive integers. JBL (talk) 21:07, 23 November 2022 (UTC)
thread_title:  What about 0? 

message: I think it would be nice to add bi-twin chains to the "List of primes by type" section, as they're notable enough to have their own separate Wiki page:
https://en.wikipedia.org/wiki/Bi-twin_chain 63.192.65.2 (talk) 21:43, 20 December 2022 (UTC)
replies: text: Sourced only to Weisstein and primenumbers.net, and a quick search doesn't suggest there's better sourcing out there waiting to be found. It seems super unlikely to me that it would survive an AfD. --JBL (talk) 21:53, 20 December 2022 (UTC)
replies: text: I haven't really done an in-depth search, but I did find sourcing on Wolfram MathWorld (https://mathworld.wolfram.com/BitwinChain.html) and scientificlib (http://www.scientificlib.com/en/Mathematics/LX/BiTwinChain.html). I also found a cryptocurrency that searches for them (Primecoin, see: https://en.wikipedia.org/wiki/Primecoin). 63.192.65.2 (talk) 23:39, 20 December 2022 (UTC)
replies: text: MathWorld is Weisstein.  ScientificLib is a Wikipedia mirror.  Surely nothing needs to be said about the cryptocurrency.  That's exactly what I mean.  --JBL (talk) 00:39, 21 December 2022 (UTC)

text: Bi-twin chain is linked in  at the bottom but has the same problem as the more notable Cunningham chain: It's a pattern of primes with different variations (the length) and not associated with a specific prime sequence like the other entries. Even if you only consider one length at a time, the natural sequence would not be primes but the even composite between the first twin primes. Bi-twin chain shows no sequence but only records. PrimeHunter (talk) 00:15, 21 December 2022 (UTC)
thread_title:  Bi-Twin chains? 

message: In the Cluster primes section, the following:
3, 5, 7, 11, 13, 17, 19, 23, ...
should be changed to:
3, 5, 7, 11, 13, 17, 19, 23, ... () Boblyonsnj (talk) 23:37, 20 February 2023 (UTC)
replies: text: Done, thanks. --JBL (talk) 00:05, 21 February 2023 (UTC)
thread_title:  Semi-protected edit request on 20 February 2023 

message: comparison example: Fibonacci
Fibonacci primes: 2, 3, 5, 13, 89, 233, 1597, 28657, 514229, 433494437, 2971215073, 99194853094755497, 1066340417491710595814572169, 19134702400093278081449423917 (OEIS: A005478)
unbounded Fibonacci sequence: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10946, 17711, 28657, 46368, 75025, 121393, 196418, 317811 (OEIS: A000045)
What does the unbounded Wall–Sun–Sun sequence look like? 94.31.82.138 (talk) 19:17, 26 August 2023 (UTC)
thread_title:  unbounded Wall–Sun–Sun sequence 

message: There are only 9 two-sided primes.: 2, 3, 5, 7, 23, 37, 53, 73, 373
This is, because if you remove digits from both sides, 313, 317 and 3137 can be changed to 1, 797 and 3797 can be changed to 9 and 739397 can be changed to 3939, 939, 393, 93, 39 or 9. 2A00:6020:A123:8B00:E0DF:7AE2:ABD6:637 (talk) 19:23, 8 October 2023 (UTC)
replies: text: List of prime numbers#Two-sided says "Primes that are both left-truncatable and right-truncatable". That includes 313, 317 and 3137. You don't have to be able to alternate between left and right. The listed source OEIS:A020994 agrees. Your sequence is OEIS:A085823 which is not called two-sided primes. PrimeHunter (talk) 01:39, 9 October 2023 (UTC)
thread_title:  There are only 9 two-sided primes. 

message: double Mersenne divisors
Primes p that divide 22n-1 - 1, for some prime number 2n - 1.
7, 127, 62914441, 231733529, 2147483647, 64296354767, 338193759479, 5746991873407, 295257526626031, 87054709261955177, 242557615644693265201, 178021379228511215367151, 2106734551102073202633922471, 824271579602877114508714150039, 65997004087015989956123720407169, 170141183460469231731687303715884105727, 210206826754181103207028761697008013415622289
double Mersenne prime exponents
3, 7, 31, 127 94.31.84.138 (talk) 17:13, 25 October 2023 (UTC)
thread_title:  new sequences 

message: The article should be protected again.
[Edit=Require administrator access] (indefinite) [Move=Require administrator access] (indefinite) 94.31.83.138 (talk) 17:28, 29 October 2023 (UTC)
replies: text: why Semen2 (talk) 16:06, 21 March 2024 (UTC)
thread_title:  article protection 

message: Some left-truncatable primes are missing.: 103, 107, 307, 503, 607, 907, 1013, 1097, 1103, ...
Left-truncatable primes are primes, that remain prime, when the leading decimal digit is successively removed. So, it does not matter, if some of its digits are zeros, as long as the digits on the right are another prime. A right-truncatable prime on the other hand can not include a zero in its digits.
updated list of left-truncatable primes: 2, 3, 5, 7, 13, 17, 23, 37, 43, 47, 53, 67, 73, 83, 97, 103, 107, 113, 137, 167, 173, 197, 223, 283, 307, 313, 317, 337, 347, 353, 367, 373, 383, 397, 443, 467, 503, 523, 547, 607, 613, 617, ... 94.31.88.138 (talk) 19:52, 23 April 2024 (UTC)
replies: text: If you were to follow the link either to the article Truncatable prime or to the referenced OEIS sequence, you would see that the definition explicitly forbids the digit 0.  I would not be opposed to adding this to the article here. --JBL (talk) 21:46, 25 April 2024 (UTC)
thread_title:  missing left-truncatable primes