mersenneforum.org Search Results
 Register FAQ Search Today's Posts Mark Forums Read

 Showing results 1 to 25 of 30 Search took 0.01 seconds. Search: Posts Made By: bbb120
 Forum: PrimeNet 2020-09-02, 08:16 Replies: 28 Views: 2,161 Posted By bbb120 Is their computer hardware particularly good? Is their computer hardware particularly good?
 Forum: Factoring 2019-03-12, 04:02 Replies: 103 Views: 16,590 Posted By bbb120 FindGroupOrder := function (p, sigma) K :=... FindGroupOrder := function (p, sigma) K := GF(p); v := K ! (4*sigma); u := K ! (sigma^2-5); x := u^3; b := 4*x*v; a := (v-u)^3*(3*u+v); A := a/b-2; x := x/v^3; b...
 Forum: Twin Prime Search 2019-03-09, 06:14 Replies: 8 Views: 2,519 Posted By bbb120 please tell me the least twin primes which great... please tell me the least twin primes which great than 10^1000
 Forum: Miscellaneous Math 2019-03-08, 08:08 Replies: 4 Views: 1,080 Posted By bbb120 Do[If[Mod[PowerMod[3, n - 1, n] + 1, n] == 0, ... Do[If[Mod[PowerMod[3, n - 1, n] + 1, n] == 0, Print[{n, FactorInteger[n]}]], {n, 3, 10^6}] my proof is not correct,because 3^(28-1)+1=272342767321*28 is multiple of 28 i do not know why
 Forum: Miscellaneous Math 2019-03-08, 07:45 Replies: 4 Views: 1,080 Posted By bbb120 if 2^(n-1)=-1(mod n),then 2^(2n-2)=1(mod n) ... if 2^(n-1)=-1(mod n),then 2^(2n-2)=1(mod n) this told me that ordn(2)=2n-2>n 2^eulerphi(n)=1(mod n) this told me that ordn(2)
 Forum: GMP-ECM 2019-03-08, 02:17 Replies: 4 Views: 1,633 Posted By bbb120 https://members.loria.fr/PZimmermann/records/top10... https://members.loria.fr/PZimmermann/records/top10-2018.html FindGroupOrder := function (p, sigma) K := GF(p); v := K ! (4*sigma); u := K ! (sigma^2-5); x := u^3; b := 4*x*v; ...
 Forum: GMP-ECM 2019-03-08, 02:12 Replies: 4 Views: 1,633 Posted By bbb120 FindGroupOrder := function (p, sigma) K :=... FindGroupOrder := function (p, sigma) K := GF(p); v := K ! (4*sigma); u := K ! (sigma^2-5); x := u^3; b := 4*x*v; a := (v-u)^3*(3*u+v); A := a/b-2; x := x/v^3; b...
 Forum: Software 2019-03-04, 03:55 Replies: 19 Views: 1,487 Posted By bbb120 Very Good！ Great！ you let me found I am... Very Good！ Great！ you let me found I am ignorant! you are really very very clever! but what is Jacobi error check? I only know jacobi symbol in number theory !
 Forum: Software 2019-03-02, 04:03 Replies: 19 Views: 1,487 Posted By bbb120 Is this algorithm much better and faster than... Is this algorithm much better and faster than lucas-lehmer algorithm ? Testing Mersenne Primes with Elliptic Curves https://link.springer.com/chapter/10.1007/11870814_27
 Forum: Software 2019-03-02, 01:00 Replies: 19 Views: 1,487 Posted By bbb120 but different FFT can diff much？ the large... but different FFT can diff much？ the large Mp,the much faster prime95 than mathematica!
 Forum: Software 2019-03-02, 00:27 Replies: 19 Views: 1,487 Posted By bbb120 why is prime95 much faster than mathematica? I test M86243=2^86243-1 with prime95 and mathematica , by using the same algorithm -lucas lehmer algorithm , but prime95 is much much much fast than mathematica 11.3! prime 95 takes no more than 2...
 Forum: GMP-ECM 2019-03-01, 01:50 Replies: 9 Views: 2,106 Posted By bbb120 I factor number using mathematica previously, ... I factor number using mathematica previously, but it is a little slow,so I want to use some software which can fast quickly than mathematica!
 Forum: Forum Feedback 2019-03-01, 01:43 Replies: 5 Views: 847 Posted By bbb120 but you know that "I am not a spammers!" but you know that "I am not a spammers!"
 2019-03-01, 01:29 Replies: 388 Sticky: The probable primes Views: 238,591 Posted By bbb120 https://en.wikipedia.org/wiki/Baillie%E2%80%93PSW_... https://en.wikipedia.org/wiki/Baillie%E2%80%93PSW_primality_test https://en.wikipedia.org/wiki/Lucas_pseudoprime#Strong_Lucas_pseudoprimes you can read this for lucas test!
 Forum: GMP-ECM 2019-03-01, 01:24 Replies: 9 Views: 2,106 Posted By bbb120 I think he can make prime95 factor any type of... I think he can make prime95 factor any type of integer ,not only k*b^n+c,I just give him some suggestion! I hope I can factor any integer by prime95 one day !
 Forum: Forum Feedback 2019-03-01, 01:19 Replies: 5 Views: 847 Posted By bbb120 which link？ Please do not move my POST which link？ Please do not move my POST
 2019-03-01, 00:46 Replies: 388 Sticky: The probable primes Views: 238,591 Posted By bbb120 miller rabin really does not give any certificate... miller rabin really does not give any certificate a prime , but several miller rabin test with one lucas test is very fast and very very Reliable!
 Forum: Forum Feedback 2019-03-01, 00:37 Replies: 5 Views: 847 Posted By bbb120 who moved my post? please do not move my POST ! I do not know who and why moved my POST! I do not necroposting(灌水)on this forum (no one will take interest in necroposting on this forum from China ! ) , I only...
 Forum: GMP-ECM 2019-03-01, 00:21 Replies: 9 Views: 2,106 Posted By bbb120 but I can not use GMP-ECM on windows 7？ I know... but I can not use GMP-ECM on windows 7？ I know nothing about linux or unix
 Forum: GMP-ECM 2019-02-28, 07:57 Replies: 9 Views: 2,106 Posted By bbb120 how can I use GMP-ECM on Windows 7? I take great interest in factorization , but I am unable to use Linux or Unix , is there anybody who can use GMP-ECM on Windows 7? prime95 only can ECM number like k*b^n+c
 Forum: Software 2019-02-28, 07:41 Replies: 602 Views: 79,804 Posted By bbb120 prime95 can only ECM number which like k*b^n+c, ... prime95 can only ECM number which like k*b^n+c, but I want to use it to factor any integer！ how can I do this?
 Forum: Miscellaneous Math 2019-02-28, 07:21 Replies: 22 Views: 943 Posted By bbb120 28871482380507712126714295971303939919776094592797... 2887148238050771212671429597130393991977609459279722700926516024197432\ 3037991527331163289831446392259419778031109293496555784189494417409338\...
 Forum: Miscellaneous Math 2019-02-28, 07:05 Replies: 22 Views: 943 Posted By bbb120 You can use mathematica ,function... You can use mathematica ,function PrimeQ[2^73360+10711] MillerRabin[n0_,a0_]:=Module[{n=n0,a=a0,s,m,t1,k}, s=0;m=n-1;While[Mod[m,2]==0,m=m/2;s=s+1]; t1=PowerMod[a,m,n]; ...
 Forum: GMP-ECM 2019-02-27, 01:07 Replies: 4 Views: 1,633 Posted By bbb120 https://members.loria.fr/PZimmermann/records/ecm/g... https://members.loria.fr/PZimmermann/records/ecm/go.magma I found it, but why do no use A and B instead of sigma (where y^2=x^3+A*x+B)? Is sigma much more useful than A and B?
 Forum: Miscellaneous Math 2019-02-26, 04:44 Replies: 22 Views: 943 Posted By bbb120 Great! Good Job! Great! Good Job!
 Showing results 1 to 25 of 30

All times are UTC. The time now is 12:43.

Sat Sep 26 12:43:05 UTC 2020 up 16 days, 9:54, 1 user, load averages: 1.63, 1.65, 1.64