mersenneforum.org  

Go Back   mersenneforum.org > Extra Stuff > Miscellaneous Math

Reply
 
Thread Tools
Old 2018-12-10, 06:27   #1
a1call
 
a1call's Avatar
 
"Rashid Naimi"
Oct 2015
Remote to Here/There

205510 Posts
Default Primes of the Form Mod(p,q) = Mod(x,q)

Hi all,
Is there a proof that primes p such that
Mod (p,q) = Mod (x,q)
For any given prime q and integer x such that
0 < x < q
Are Infinity many?
For example for q = 5 and x = 3
Is it provable that the set of primes p:
13, 23, 43, ...
Is infinity large.
Thank you for any reference you may provide.
a1call is offline   Reply With Quote
Old 2018-12-10, 09:19   #2
Nick
 
Nick's Avatar
 
Dec 2012
The Netherlands

2·23·37 Posts
Default

This may help:
https://primes.utm.edu/notes/Dirichlet.html

I think it is also worth experimenting with specific numbers to get a feel for this type of problem (and not just with q prime).
For example:
  1. Prove that there are infinitely many prime numbers.
  2. Prove that there are infinitely many primes which are 3 mod 4.
  3. Prove that there are infinitely many primes that are 1 mod 4.
Nick is offline   Reply With Quote
Old 2018-12-10, 12:51   #3
a1call
 
a1call's Avatar
 
"Rashid Naimi"
Oct 2015
Remote to Here/There

3·5·137 Posts
Default

Much obliged Nick,
For the record the Wikipedia entry:
https://en.m.wikipedia.org/wiki/Diri...c_progressions
a1call is offline   Reply With Quote
Old 2018-12-10, 15:37   #4
Batalov
 
Batalov's Avatar
 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2

36·13 Posts
Default

https://primes.utm.edu/top20/page.php?id=14 , too
Batalov is offline   Reply With Quote
Old 2018-12-11, 02:31   #5
science_man_88
 
science_man_88's Avatar
 
"Forget I exist"
Jul 2009
Dumbassville

26·131 Posts
Default

http://mathworld.wolfram.com/Modular...gFunction.html is indirectly related.
science_man_88 is offline   Reply With Quote
Old 2018-12-11, 02:51   #6
LaurV
Romulan Interpreter
 
LaurV's Avatar
 
Jun 2011
Thailand

7×1,373 Posts
Default

Quote:
Originally Posted by Nick View Post
3. Prove that there are infinitely many primes that are 1 mod 4.
4. Prove that there are infinitely many primes that are 6 mod 7.


Oh... wait... that was the other guy...
LaurV is offline   Reply With Quote
Old 2018-12-11, 03:34   #7
a1call
 
a1call's Avatar
 
"Rashid Naimi"
Oct 2015
Remote to Here/There

80716 Posts
Default

To much meat on those links.
Thank you Gents both.
Currently I am exhausted from my day job. Digestion will have to wait for another day if at all possible. The straight forward proof seems way too advanced. But Google seems to indicate there has been searches for an "elementary" proof. Will see if that's easier on the mind.

Thank you for all the replies.
a1call is offline   Reply With Quote
Reply



Similar Threads
Thread Thread Starter Forum Replies Last Post
Primes of the form (b+-1)*b^n+-1 and b^n+-(b+-1) sweety439 sweety439 162 2020-05-15 18:33
A question about primes of a particular form enzocreti enzocreti 55 2019-04-27 11:10
Primes of the form n+-phi(n) carpetpool carpetpool 3 2017-01-26 01:29
Primes of the form a^(2^n)+b^(2^n) YuL Math 21 2012-10-23 11:06
Primes of the form 2.3^n+1 Dougy Math 8 2009-09-03 02:44

All times are UTC. The time now is 04:44.


Sat Jul 17 04:44:58 UTC 2021 up 50 days, 2:32, 1 user, load averages: 2.66, 2.28, 2.22

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.