20220420, 20:09  #100 
Dec 2008
you know...around...
2^{2}·11·19 Posts 
The WR gaps so far have all been fully checked, consequently this gap should also be fully checked IMHO.
My pocket calculator says for 36375 tests it would take me about 82 days for a full check on my Win8PC. Depending on the progress, later I can also allocate some more resources (two more cores on my newest laptop which is a bit faster than the PC). I haven't tried a1 in OpenPFGW yet. But for a start it would be good if you could just provide the list of values 3531714 < x < 3654858 for which 29*479909#/19#+x has to be checked (either here or via PM). I would then pick a range, x < 2000000 say, and start testing. Last fiddled with by mart_r on 20220420 at 20:11 Reason: too many "s" 
20220420, 21:18  #101 
"Oliver"
Sep 2017
Porta Westfalica, DE
1237_{10} Posts 
If open for anyone, I would like to help with testing x > 3e6.

20220421, 02:09  #102 
Jun 2003
Suva, Fiji
2^{3}×3×5×17 Posts 

20220421, 05:47  #103  
Jan 2018
156_{8} Posts 
Quote:
and also thanks in advance to Kruoli! Regarding logging: using the minus L option: lyourlogfilenamehere.txt command in the command line, will log all output into a textfile in the directory where the pfgw64 executable file is. I am not sure what a1 does, I remember Jens asked me to use that in 2013. Logging will do the trick just fine! Attached you will find the list of candidates after sieving till 10^12. In 2 files, on for the plus side and another for the minus side. It has all candidates in a range 29*Prime(40.000)#/9699690 +/ 50*Prime(40.000). Just delete the extra values outside the range 3531714 < x < 3654858. The first 3 rows look like: 29 9699690 479909 Those are the multiplier (29), the divider (9699690) and the primorial of Prime(40.000) = 479909# From the 4th line onwards you will find the remaining candidates on the minus or plus side, each side has a separate file. Note: The 62.5 days was based on around 10 minutes per PRP on my machine. Taking 13 minutes per PRP on yours would indeed take 18 extra days... There should be a smarter way ... Kind regards Michiel Last fiddled with by MJansen on 20220421 at 06:14 Reason: explained the attached files 

20220421, 16:27  #104 
"Oliver"
Sep 2017
Porta Westfalica, DE
4D5_{16} Posts 
Hm, PFGW 4.0.1 sees my CPU as having only (up to) SSE4.2, while it has AVX512. Is this the wrong version? I took it from SourceForge.
I changed the file header to ABC 29*479909#/9699690+$a because I did not see which format your file is in. Last fiddled with by kruoli on 20220421 at 16:55 Reason: Fixed formula. 
20220421, 17:04  #105 
Dec 2008
you know...around...
2^{2}·11·19 Posts 
OK, like I said I'll start testing 29*479909#/19#+x with 3531714 < x <= 2000000.
I won't test those 23995430 <= x < 3531714, that would take way too long 
20220421, 21:31  #106  
Jan 2018
156_{8} Posts 
Quote:
Hi it is a custom made flat text file, they are a direct output from Jens's Treesieve program. Change them any way you like, ABC seems easy enough. Thanks again for helping out! Kind regards Michiel 

20220421, 21:39  #107 
Jan 2018
2·5·11 Posts 

20220421, 21:42  #108 
Jan 2018
110_{10} Posts 

20220428, 07:13  #109 
"Seth"
Apr 2019
2×3×79 Posts 
primecert v2
Michiel had some excellent suggestions about updating the "primecert" column to more than
"C"  certified "P"  probabilistic "?"  unverified In short they suggest adding, P (proven), D (Double checked), T (Trusted submitter) with upper and lower casing to indicate if it's the endpoints (lowercase) or internals (uppercase) that have been proven / verified / taken on trust. I've added a new page modernformat to the wiki to formalize this change. Michiel will propose the new text for P/D/T and everyone else is welcome to suggest other changes. Hope everyone is well and enjoying the spring; My tulips have just bloomed! 
20220429, 19:04  #110 
"Oliver"
Sep 2017
Porta Westfalica, DE
1,237 Posts 
This is finished. See the attached file.

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