Posts by DSJR9453

1) Message boards : Questions/Problems/Bugs : Right? (Message 2428) Posted 2 Jan 2024 by DSJR9453 Post: https://escatter11.fullerton.edu/nfs/numbers.php 7,395- is not P113P201, it is P107P114
2) Message boards : Questions/Problems/Bugs : Right? (Message 2342) Posted 11 Nov 2022 by DSJR9453 Post: Can you reserve all remain numbers with difficulty < 325? (i.e. 11,311+ 5,464+ 7,416+7,448+ 11,338+)? (7,448+ is reserved by Dodson for 6 years with no result)
3) Message boards : Questions/Problems/Bugs : Right? (Message 2334) Posted 26 Sep 2022 by DSJR9453 Post: Now three numbers with exponents divisible by 5 (but not 3,7,13) are reserved, so what are their true difficulty? For 2,2350M, the SNFS suggestion difficulty is 283, and its true difficulty seems to be 324 (since it is reserved at this time, just after 11,311-, whose SNFS difficulty is 324), also 2,1180+ and 2,2390L, the SNFS suggestion difficulty are 285 and 288, respectively (also, why not reserve 7,395-? It is also exponent divisible by 5 and SNFS difficulty is 267, less than 2,2350M’s 283)
4) Message boards : Questions/Problems/Bugs : Right? (Message 2311) Posted 16 Jul 2022 by DSJR9453 Post: Can you reserve all remain numbers with difficulty < 325? (i.e. 11,311+ 5,464+ 7,416+7,448+ 11,338+)? (7,448+ is reserved by Dodson for 6 years with no result)
5) Message boards : Questions/Problems/Bugs : Right? (Message 2310) Posted 30 Jun 2022 by DSJR9453 Post: How about 3,715-? 715 = 51113, and the SNFS difficulty is 272.913, but as you say, exponents divisible by 5 or 11 is more difficult than their SNFS-size suggests, but exponents divisible by 3, 7, or 13 is not.
6) Message boards : Questions/Problems/Bugs : Right? (Message 2309) Posted 21 Jun 2022 by DSJR9453 Post: So does the status of numbers list https://escatter11.fullerton.edu/nfs/numbers.php now includes all numbers with SNFS difficulty <= 324?
7) Message boards : Questions/Problems/Bugs : About GNFS and SNFS (Message 2303) Posted 17 May 2022 by DSJR9453 Post: I think that I am right. e.g. http://myfactorcollection.mooo.com:8090/cgi-bin/showSNFS?Number=&Base=2&Exp=1237&c0=-&LM= (2,1237- should use SNFS) http://myfactorcollection.mooo.com:8090/cgi-bin/showSNFS?Number=&Base=10&Exp=383&c0=-&LM= (10,383- should use GNFS)
8) Message boards : Questions/Problems/Bugs : About GNFS and SNFS (Message 2301) Posted 17 May 2022 by DSJR9453 Post: If the corresponding cyclotomic number Phi(n,b) (where Phi is the cyclotomic polynomial) has > 1/3 factored, then you will use GNFS to factor the unfactored part (e.g. 2,2822M, the http://factordb.com/index.php?id=1100000000556825907 corresponding cyclotomic number Phi(5644M,2) has 395 digits, and the unfactored part has only 202 digits ((395-202)/395 = 48.86% (> 1/3) factored), so you use GNFS; if the corresponding cyclotomic number Phi(n,b) (where Phi is the cyclotomic polynomial) has < 1/3 factored, then you will use SNFS to factor the unfactored part (e.g. 3,791-, the http://factordb.com/index.php?id=1100000000032414811 corresponding cyclotomic number Phi(791,3) has 321 digits, and the unfactored part has 280 digits ((321-280)/321 = 12.77% (< 1/3) factored), so you use SNFS. Is my thought right?
9) Message boards : Questions/Problems/Bugs : Can the currently progress shown in pages? (Message 2295) Posted 6 May 2022 by DSJR9453 Post: Why just-factored 2,2622L (SNFS 264) is not shown in https://escatter11.fullerton.edu/nfs/numbers.php? Also, what is the current progress of 10,323+?
10) Message boards : Questions/Problems/Bugs : Can the currently progress shown in pages? (Message 2292) Posted 18 Apr 2022 by DSJR9453 Post: Thanks! So 10,323- will not be completed in April? And 47.5% â€¦ so the currently progress of 10,323- is the same as the progress of which day of 5,461+? (see [url] https://pastebin.com/Awnh2MmT[/url]) Is about Apr. 1st?
11) Message boards : Questions/Problems/Bugs : Can the currently progress shown in pages? (Message 2290) Posted 13 Apr 2022 by DSJR9453 Post: Well, what is the currently progress for 10,323-?
12) Message boards : Questions/Problems/Bugs : Can the currently progress shown in pages? (Message 2288) Posted 8 Apr 2022 by DSJR9453 Post: What is the currently progress for 10,323-?
13) Message boards : Questions/Problems/Bugs : Can the currently progress shown in pages? (Message 2286) Posted 23 Mar 2022 by DSJR9453 Post: What is the currently progress for 7,889M?
14) Message boards : Questions/Problems/Bugs : Can the currently progress shown in pages? (Message 2284) Posted 6 Mar 2022 by DSJR9453 Post: So when 7,889M has 80% sieved, you will start 5,461+, and when 5.461+ has 80% sieved, you will start 10,323-?
15) Message boards : Questions/Problems/Bugs : Can the currently progress shown in pages? (Message 2280) Posted 2 Mar 2022 by DSJR9453 Post: e.g. in https://kurtbeschorner.de/, this website shows that the currently progress for R1340L (10,670L in Cunningham table) is 36% What is the currently progress for 7,889L and 7,889M? Also, I think they should be done before Mar. 7th (am I right?) since see http://pastebin.com/Um73g3mH, 12.298+ was factoring only using 5 days (Feb. 5 to Feb. 9), and see https://pastebin.com/fFbkEYgD, 3.674+ was factoring only using 8 days (Jan. 21 to Jan. 28), and 7,889L was already factoring as of early Februaryâ€¦.
16) Message boards : Questions/Problems/Bugs : Right? (Message 2279) Posted 18 Feb 2022 by DSJR9453 Post: So only when exponent n is divisible by 3, 7, or 13, b^n+-1 has difficulty eulerphi(2n)log(b)/log(10) and is easier to factor? Otherwise (e.g. n is prime or 5prime or 11prime), b^n+-1 has difficulty nlog(b)/log(10) (more difficult than the SNFS difficulty when n is 5prime or 11*prime)?
17) Message boards : Questions/Problems/Bugs : Right? (Message 2275) Posted 14 Feb 2022 by DSJR9453 Post: 5*prime should be also suitable, see https://www.rieselprime.de/ziki/SNFS_polynomial_selection Thus 7,395- and 7,395+ should be SNFS 264, and 10,365- and 10,365+ should be SNFS 289, like that 10,371- is SNFS 313, and 3,791- is SNFS 324 So 7,395-, 7,395+, 10,365-, 10,365+ should be already factored, but they are not â€¦.
18) Message boards : Questions/Problems/Bugs : Why the next number (7,889M) is not sieving? (Message 2274) Posted 14 Feb 2022 by DSJR9453 Post: Okay. Besides, can https://escatter11.fullerton.edu/nfs/numbers.php include all numbers with SNFS difficulty <= 325? (In the past this list includes many numbers whose â€œstatusâ€ are neither â€œsievingâ€ nor â€œqueuedâ€, see https://web.archive.org/web/20210304225928/https://escatter11.fullerton.edu/nfs/numbers.php) https://homes.cerias.purdue.edu/~ssw/cun/who.txt says that all of them (except 11,341- and 11,311+) are reserved.
19) Message boards : Questions/Problems/Bugs : Why the next number (7,889M) is not sieving? (Message 2272) Posted 12 Feb 2022 by DSJR9453 Post: Currently 12,298+ is done, and 7,889L is already sieving, but at any time there should be two numbers sieving, why 7,889M is not sieving? Do you forget it?
20) Message boards : Questions/Problems/Bugs : Right? (Message 2271) Posted 16 Jan 2022 by DSJR9453 Post: Thanks!! I missed some large n-values which are 7prime, especially 7,889L and 7,889M also 11,341-, 341 is 11prime thus they have smaller difficulty. It appears that 5*prime is not suitable for this, or 7,395-, 7,395+, 10,365-, 10,365+, etc. will be already factored in last year, whatâ€™s the reason?

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