20050924, 16:46  #1 
Sep 2005
Raleigh, North Carolina
337 Posts 
Number of digits display
I was wondering how do I change the ini or what ever for my primes to display total digits. I have seen some posts that have it that way. Thanks in advance

20050924, 19:05  #2 
Jun 2004
5·11 Posts 
You can calcutlate the number of digits yourself
log(base) * log(n) + log(k) Round this number to above (ceil) and you have the number of digits 
20050924, 22:45  #3 
2×3×211 Posts 
Do you want a windows application that does just this?
I can make a separate application accesory. RMA.NET displays this on it's main window, along with the number of primes you have found in the prime.txt file. 
20050925, 05:48  #4 
Sep 2005
Raleigh, North Carolina
337 Posts 
where can I get this RMA.net

20050925, 06:31  #5 
2·3·5·241 Posts 
Right now it is available as a prerelease candidate here:
http://groups.yahoo.com/group/primeform/files/RMA/ Join the primeform group in order to view, and download files from the menu, on the left. You must have Microsoft.NET framework installed to use this software. Let me know if you have any problems. TTn 
20050925, 09:59  #6 
Sep 2005
Raleigh, North Carolina
337 Posts 
Hmm, tryed to d/l exe file and this pops up:
Application has generated an exception that could not be handled. Process id=0x85c (2140), Thread id=0xae0 (2784). Do you have a clue whats wrong? 
20050925, 18:33  #7 
5440_{10} Posts 
grobie Hmm, tryed to d/l exe file and this pops up:
Application has generated an exception that could not be handled. Process id=0x85c (2140), Thread id=0xae0 (2784). Do you have a clue whats wrong? You need Microsofts' .NET framework, which is available at the windows update site. I prefer it from CD though. If you do already have the framework, it must be broken! .NET applications always work on machines, with the proper framework installed. This application has been tested, and works. I hope this helps! 
20050926, 06:48  #8 
Aug 2004
Melbourne, Australia
2^{3}·19 Posts 
Just to clarify. Let be any natural number. It is clear that the number of digits of , , satisfies .
For Rieseltype numbers then , using log laws, except when (i.e. ) when we've overcalculated by one digit, and for this special case . For Prothtype numbers, and . There are no special cases here since a special case would require to be written in decimal notation, which is impossible since is odd. 
20050926, 08:40  #9 
Sep 2005
Raleigh, North Carolina
337 Posts 
Ok, show me with this prime how to calculate it: 290499495 61514 I know its small but I really want to learn how to figure out how many digits a given prime is.

20050926, 10:01  #10  
May 2005
2·809 Posts 
Quote:
=LOG(290499495)+61514*LOG(2)+1 

20050926, 10:54  #11 
7^{2}·83 Posts 
Solution
Grobie,
I found that security settings will make this exact error come up. The solution is to right click on RMA.exe, and choose "Save Target As..." This will work for you. Please let me know what you think. TTn 
Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
who can help me factor this 155 digits number  sinide  Factoring  12  20101109 01:05 
who can factor this 128 digits number?  aaa120  Factoring  19  20100904 09:16 
Number Of Digits; I Hate To Ask  storm5510  Other Mathematical Topics  14  20100831 01:16 
Factoring 132digits Number  abc_temp  Factoring  14  20071223 20:25 
how do you find number of digits of a 2^n number?  Unregistered  Math  11  20041130 22:53 