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Search: Posts Made By: bbb120
Forum: Forum Feedback 2022-10-31, 03:28
Replies: 23
Views: 1,875
Posted By bbb120
use vim, set ff=unix and return then copy and...

use vim, set ff=unix and return
then copy and paste
Forum: Forum Feedback 2022-10-12, 05:37
Replies: 3
Views: 718
Posted By bbb120
how to use Signature on this forum ? ...

how to use Signature on this forum ?

Moderator note: This is at least your second recent post asking about something that's in the FAQ.

Don't do that.

I'll give you a week off to think about...
Forum: Forum Feedback 2022-10-12, 05:31
Replies: 3
Views: 718
Posted By bbb120
User CP——Settings & Options——Thread Display...

User CP——Settings & Options——Thread Display Options ——Visible Post Elements——Show Avatars

I solve this problem by myself ,it is none of QQ browser's business !
Forum: Forum Feedback 2022-10-12, 05:21
Replies: 3
Views: 718
Posted By bbb120
I cannot see avatar

my browser is QQ browser ,
I can see avatar some days ago with my QQ browser ,
but I can not watch it again ,I do not know why .
but if I use Firefox,I can see avatar!

thread ...
Forum: Information & Answers 2022-10-11, 06:17
Replies: 86
Views: 19,093
Posted By bbb120
me too! I also want to factor F20=2^(2^20)+1, ...

me too!
I also want to factor F20=2^(2^20)+1,
and want to primality on F33=2^(2^33)+1
Forum: Number Theory Discussion Group 2022-10-11, 03:45
Replies: 4
Views: 570
Posted By bbb120
65535 is the smallest counterexample to...

65535 is the smallest counterexample to F5=2^(2^5)+1
Forum: Miscellaneous Math 2022-10-11, 01:09
Replies: 20
Views: 2,641
Posted By bbb120
Folk scientist????

Folk scientist????
Forum: Number Theory Discussion Group 2022-10-10, 05:45
Replies: 3
Views: 406
Posted By bbb120
https://www.mersenneforum.org/showthread.php?t=213...

https://www.mersenneforum.org/showthread.php?t=21322

can you find a initial value s0 for all primes(2 included)?
Forum: Number Theory Discussion Group 2022-10-10, 05:01
Replies: 3
Views: 406
Posted By bbb120
why Lucas-Lehmer Test is not suitable for M2?

Mersenne number M2=2^2-1=3 is prime

L0=4
L[2-2]=L[0]=4=1(mod M2) not equal zero,
but M2 is a prime number.

Lucas-Lehmer Test is suitable for p=3,5,7,11,13,.....

but why is Lucas-Lehmer...
Forum: Homework Help 2022-10-10, 00:40
Replies: 7
Views: 1,671
Posted By bbb120
two difficult things : 1. I don't know how...

two difficult things :

1. I don't know how to translate Chinese words into English properly ,
I know the word prime ,but don't know the word "repunit".the best search engine Google can not be...
Forum: Homework Help 2022-10-10, 00:30
Replies: 7
Views: 1,671
Posted By bbb120
it is difficult to visit Wikipedia in China!

it is difficult to visit Wikipedia in China!
Forum: Homework Help 2022-10-09, 06:49
Replies: 7
Views: 1,671
Posted By bbb120
4^n-1=(2^n-1)(2^n+1) and (2^n+1) is the...

4^n-1=(2^n-1)(2^n+1)
and (2^n+1) is the multiple of 3
so it can only generate one prime number
Forum: Homework Help 2022-10-09, 06:23
Replies: 7
Views: 1,671
Posted By bbb120
(4^n-1)/3 only can generate one prime number?

let
m=(a^n-1)/(a-1)
when a=2,mersenne number,
but when a=4,it can only generate one prime number?
my mathematica code
Do[a=(4^k-1)/(4-1);If[PrimeQ[k]&&PrimeQ[a],Print[{k,a}]],{k,1,2000}]
...
Forum: FactorDB 2022-10-09, 03:22
Replies: 214
Views: 65,115
Posted By bbb120
I download primo Windows version some years ago...

I download primo Windows version some years ago ,but he did not provide Windows version now ,
do you have Windows old version of primo ?
Forum: Proth Prime Search 2022-10-08, 05:32
Replies: 75
Views: 7,389
Posted By bbb120
where can I download ECPP software(Windows 7)?

where can I download ECPP software(Windows 7)?
Forum: GMP-ECM 2022-10-08, 05:30
Replies: 29
Views: 3,898
Posted By bbb120
why bug can also find a factor? maybe you can...

why bug can also find a factor?
maybe you can find a new algorithm by studying this "bug"
Forum: Proth Prime Search 2022-09-26, 07:47
Replies: 75
Views: 7,389
Posted By bbb120
how to use LLR?

I do not know how to use it ?
who can give me some examples?

I download it from
http://jpenne.free.fr/index2.html
LLR Version 4.0.2 for MS Windows 64bit, GUI

MODERATOR NOTE: This and all...
Forum: Proth Prime Search 2022-09-23, 08:57
Replies: 75
Views: 7,389
Posted By bbb120
I try to understand that sentence with Baidu , ...

I try to understand that sentence with Baidu ,
but What is the relationship between SNR and primality?


SNR=Signal to Noise Ratio????????
Forum: Software 2022-09-23, 08:54
Replies: 526
Views: 120,419
Posted By bbb120
ok thank you very much!

ok thank you very much!
Forum: Software 2022-09-23, 06:15
Replies: 526
Views: 120,419
Posted By bbb120
maybe someone download source code successful on...

maybe someone download source code successful on this forum !
Forum: Proth Prime Search 2022-09-23, 05:00
Replies: 75
Views: 7,389
Posted By bbb120
the SNR can actually be negative I can not...

the SNR can actually be negative
I can not understand this sentence!
Forum: Proth Prime Search 2022-09-23, 01:36
Replies: 75
Views: 7,389
Posted By bbb120
http://www.janfeitsma.nl/math/psp2/statistics ...

http://www.janfeitsma.nl/math/psp2/statistics

I only have statistics data of base 2,
Forum: Software 2022-09-23, 01:23
Replies: 526
Views: 120,419
Posted By bbb120
I failed download source code from...

I failed download source code from https://sourceforge.net/p/openpfgw/code/HEAD/tree/ by tortoiseSVN!
why it can not download the zip file of source code directly just like GitHub ?
Forum: Proth Prime Search 2022-09-22, 03:26
Replies: 75
Views: 7,389
Posted By bbb120
please choose your base at random!

please choose your base at random!
Forum: Proth Prime Search 2022-09-21, 07:35
Replies: 75
Views: 7,389
Posted By bbb120
according the prime number theory ,there are ...

according the prime number theory ,there are
=>according the prime number theorem ,there are
maybe someone can help me modify the last reply,
I cannot edit it now
Showing results 1 to 25 of 132

 
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