20081211, 12:56  #12  
Nov 2008
2×3^{3}×43 Posts 
Quote:
If your new number is of the same scale as that number, trial division is all you can do. 

20081211, 14:26  #13 
6809 > 6502
"""""""""""""""""""
Aug 2003
101ร103 Posts
2^{2}×7×389 Posts 
It depends on the size of the number, the bigger it is the further up to go. You can just post the number as 332xxxxxx if you want to keep it hidden. Do you think that your new number maybe prime? Are you trying to eliminate it (find a factor)? Or are you only playing around (I am not being dismissive, just asking)?

20081211, 14:32  #14 
3^{2}·23^{2} Posts 
the exponent is around 400 million,i know it'l take years to be proven prime but i just want to give it a go.the exponent IS prime.so how far should i try factor it?should i run a ll test on it,ecm?im new to this so dont have a clue what i should do next.
Thanks. 
20081211, 15:19  #15  
Nov 2008
2·3^{3}·43 Posts 
Quote:


20081211, 15:25  #16 
2·31·97 Posts 
dont worry im preparred for the wait!so can anyone give me advice on what i should do next (dont want to use prime95,long story.).

20081211, 15:38  #17 
6809 > 6502
"""""""""""""""""""
Aug 2003
101ร103 Posts
2A8C_{16} Posts 
Factor it to 2^74 then run P1 then factor to 2^76 (that is what the current settings are for 332,xxx,xxx range). After that LL it. Prime95 will be faster than Factor5 on the factoring. You can manually get the exponent assigned to you. The only reason (i think) that you would want to do ecm after the factoring is to try and find the factor, just because.

20081211, 19:25  #18 
Nov 2008
912_{16} Posts 
What exactly is the number?

20081211, 22:03  #19 
11·229 Posts 
thanks uncwilly,il try that,do you have any links to a program that runs p1?

20081212, 08:03  #20 
Nov 2008
4422_{8} Posts 
Use Prime95.

20081212, 12:25  #21 
Bamboozled!
"๐บ๐๐ท๐ท๐ญ"
May 2003
Down not across
2×3×29×67 Posts 

20081212, 19:02  #22  
Aug 2002
2·7·13·47 Posts 
Quote:


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