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 Showing results 1 to 25 of 1000 Search took 0.42 seconds. Search: Posts Made By: Batalov
 Forum: Miscellaneous Math 2021-12-07, 01:39 Replies: 35 Views: 2,318 Posted By Batalov My pet peeve for Pari/GP is that all operators in... My pet peeve for Pari/GP is that all operators in logical operations are estimated (very different from C or even perl - in them if you write if(a && b) {} -- and a is false, b is not computed. In...
 Forum: Homework Help 2021-12-07, 01:23 Replies: 9 Views: 148 Posted By Batalov That's like when a college student is required to... That's like when a college student is required to run a mile, and instead asks you to give them a lift to 10 feet from the finish line. "I will still have to run 10 feet, right?"
 2021-12-06, 21:07 Replies: 94 Views: 27,811 Posted By Batalov I guess Neil was typing fast. Of course it is a... I guess Neil was typing fast. Of course it is a PRP (it is 177719 decimal digits in length; btw, apparently I just now added it to FactorDB (http://factordb.com/index.php?id=1100000001550303311) for...
 Forum: Homework Help 2021-12-06, 19:29 Replies: 9 Views: 148 Posted By Batalov One shall be ashamed of credit that they didn't... One shall be ashamed of credit that they didn't deserve.
 Forum: Homework Help 2021-12-06, 18:08 Replies: 9 Views: 148 Posted By Batalov This looks like a homework (and wrong forum), and... This looks like a homework (and wrong forum), and now the homework is ruined. S/he will simply turn it in and get credit that s/he doesn't deserve.
 2021-12-05, 20:07 Replies: 94 Views: 27,811 Posted By Batalov Extending A176024 - in progress... Challenge accepted! I wrote a different sieve for Smr(n), sieved and (with Ryan) we will test the survivors up to n<=500000 for starters. A few interesting facts: 1. Both Sm(n) and Smr(n) are...
 Forum: Miscellaneous Math 2021-12-02, 21:24 Replies: 4 Views: 264 Posted By Batalov Well, this was actually, two separate threads in... Well, this was actually, two separate threads in two different subforums (so it was "nearly spam", either way. Arguably, it is even worse to create multiple threads with repeated content.). The...
 Forum: Proth Prime Search 2021-12-02, 18:08 Replies: 13 Views: 19,538 Posted By Batalov It is one of the Extended Sierpinski Project... It is one of the Extended Sierpinski Project (http://www.primegrid.com/stats_esp_llr.php). (That is, proving the next Sierpinski constant, while proving the first one...
 Forum: Lounge 2021-11-30, 07:50 Replies: 4,402 Views: 378,118 Posted By Batalov "10 stupid questions to..." "...a mathematician" EYsr0DZWMCg There was a good Russian modernist poet (https://en.wikipedia.org/wiki/Vladimir_Mayakovsky) who adapted to the 1917 revolution and became a sort of an agitator and propagandist - and...
 2021-11-30, 03:55 Replies: 17 Views: 7,783 Posted By Batalov Mark R. actually wrote a sieve for that. I used... Mark R. actually wrote a sieve for that. I used my own because it was way before that. (The sharp eyes will notice that this thread is from '16; but actually there was one even before that; then...
 2021-11-29, 23:19 Replies: 15 Views: 806 Posted By Batalov Thank you for answering the rhetorical question.... Thank you for answering the rhetorical question. :rolleyes: The '-' sign happens exactly at q=3. (Which makes a-PRP still work, even for q=3, because you square both sides for the last time in...
 2021-11-29, 22:08 Replies: 15 Views: 806 Posted By Batalov Also, suggestion for simplification of your... Also, suggestion for simplification of your statement. Your a=1+√2 (mod p) -- much simpler to look at. Are you saying that [$]a^{{p+1}\over 2} = a[/$] (mod p) ? That's the same* as ap = a (mod...
 2021-11-29, 21:46 Replies: 15 Views: 806 Posted By Batalov What made you think that this is a 'new... What made you think that this is a 'new conjecture'? Your original thread title was false and misleading: 'Potential new primality test for Mersenne numbers'. One moderator implemented your...
 2021-11-29, 21:38 Replies: 15 Views: 806 Posted By Batalov Unreasonable. Because it is 100-200 years too... Unreasonable. Because it is 100-200 years too late (as a string of letters). If there is not even shard of a proof or even a sketch, then what does it add? If there is, we are eager to hear it....
 2021-11-29, 10:34 Replies: 17 Views: 7,783 Posted By Batalov =SB =SB
 2021-11-26, 22:09 Replies: 56 Views: 9,575 Posted By Batalov CPAP-7 (466 digits) is not in there. CPAP-7 (466 digits) is not in there.
 2021-11-26, 22:05 Replies: 71 Views: 8,719 Posted By Batalov Our project was completely independent -... Our project was completely independent - independent sieve and independent testing. We do not coordinate with that site. We cannot help you (or that site) document what you for some idle reason want...
 2021-11-22, 00:49 Replies: 70 Sticky: new prime k-tuplet page Views: 5,584 Posted By Batalov Well, if it is maintained in this way, then only... Well, if it is maintained in this way, then only Table 1 from it is meaningful, really, because the rest is prone to a lot of errors of omission. For example if you forget to put the 6-Tuplet...
 2021-11-21, 23:10 Replies: 70 Sticky: new prime k-tuplet page Views: 5,584 Posted By Batalov See section "5"... See section "5" (http://www.pzktupel.de/JensKruseAndersen/simultprime.htm#history5). What CPAPs do you see? Then see section "6" (https://www.pzktupel.de/JensKruseAndersen/simultprime.htm#history6)....
 2021-11-21, 21:54 Replies: 70 Sticky: new prime k-tuplet page Views: 5,584 Posted By Batalov I scanned through simultprime page and I see... I scanned through simultprime page and I see (*near the bottom) that this is simply a union of five disparate classes. Many recent CPAPs are missing from this page; for uniformity it is probably...
 2021-11-21, 20:55 Replies: 56 Views: 9,575 Posted By Batalov CPAP-7 CPAP-7 proper record: 145706980166212*1069#+x253+210*n, n=2..8 (466 digits...
 2021-11-20, 06:16 Replies: 56 Views: 9,575 Posted By Batalov new CPAP-9 record A new CPAP-9 updated record 7661619169627*379#+x153+210*n, n=0..8 (167 digits...
 Forum: Lounge 2021-11-19, 08:09 Replies: 1,057 Views: 86,838 Posted By Batalov pXezLv_5RaY pXezLv_5RaY
 2021-11-18, 21:51 Replies: 71 Views: 8,719 Posted By Batalov Not all those who can read, can comprehend. Also,... Not all those who can read, can comprehend. Also, not all those who can read, actually do read. Hint: re-read the complete text of A004023 (https://oeis.org/A004023). What, upon reading, becomes...
 Forum: Miscellaneous Math 2021-11-16, 17:15 Replies: 5 Views: 715 Posted By Batalov @Stargate38 -... @Stargate38 - https://letmegooglethat.com/?q=fastecpp
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