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 Showing results 1 to 19 of 19 Search took 0.01 seconds. Search: Posts Made By: Charles Kusniec
 Forum: Charles Kusniec 2023-03-02, 22:32 Replies: 21 Views: 3,468 Posted By Charles Kusniec Summary for a new class idea of primes and composites. Because we are now thinking of the result of dividing each integer only by its positive divisors, then we may define a classification covering all integer numbers. In this way, we can admit that...
 Forum: Charles Kusniec 2023-03-02, 01:45 Replies: 21 Views: 3,468 Posted By Charles Kusniec What a wonderful surprise to google and find my... What a wonderful surprise to google and find my work on OEISWiki still online! I promised Neil Sloane that I would not write anything on OEISWiki... But, I started to get inspired by this wonderful...
 Forum: Charles Kusniec 2023-02-28, 01:18 Replies: 21 Views: 3,468 Posted By Charles Kusniec Some corrections and improvements ...That's exactly because prime 2 is the first non-negative even number that is prime, and it is not a multiple of any previous prime. ...That's exactly because prime 3 is the first non-negative...
 Forum: Charles Kusniec 2023-02-27, 14:27 Replies: 21 Views: 3,468 Posted By Charles Kusniec Is the number 2 really the oddest prime number? Is the number 2 really the oddest prime number? In general, people say "prime 2 is the oddest prime number" because "prime 2 is the only even prime number". Could it be that when we state this...
 Forum: Charles Kusniec 2022-12-15, 11:21 Replies: 21 Views: 3,468 Posted By Charles Kusniec A354882 Yesterday I noticed that Florian Baur has edited the https://oeis.org/A354882 sequence with interesting new comments.
 Forum: Charles Kusniec 2021-12-22, 13:00 Replies: 21 Views: 3,468 Posted By Charles Kusniec The integer numbers in the form of CCCC. The integers a(n) in the form of CCCC are those that produce 4 composites in the form of [$](a(n)+-(d_s+1))[/$] and [$](a(n)+-1)[/$]. They form the sequence AAAAAA The primes a(n) that produce...
 Forum: Charles Kusniec 2021-12-12, 23:02 Replies: 21 Views: 3,468 Posted By Charles Kusniec I noticed now: there is an error in the 2... I noticed now: there is an error in the 2 definitions. The correct is: Let us call [$]d_s[/$] the number of divisors in the first sequence of consecutive divisors of an integer number. Its values...
 Forum: Charles Kusniec 2021-12-12, 14:35 Replies: 21 Views: 3,468 Posted By Charles Kusniec Important features and new sequences We can express uniquely all integers as the product of their two complementary central divisors. We call these two divisors as the central pair of complementary divisors. These two central divisors...
 Forum: Charles Kusniec 2021-12-08, 13:40 Replies: 21 Views: 3,468 Posted By Charles Kusniec Similar to Brun theorem at... Similar to Brun theorem at https://en.wikipedia.org/wiki/Brun%27s_theorem, we can calculate various constants for all possible duets, trios and quartets of primes in the form of "soviets". Would...
 Forum: Charles Kusniec 2021-12-06, 22:30 Replies: 21 Views: 3,468 Posted By Charles Kusniec The prime 5 is the only prime in PCCP sequence. ... The prime 5 is the only prime in PCCP sequence. The PCCP sequence is very similar to https://oeis.org/A225461. There is a note in A225461: "Heuristically, A001223(n)/2 should be prime with...
 Forum: Charles Kusniec 2021-12-05, 21:04 Replies: 21 Views: 3,468 Posted By Charles Kusniec Thanks to the great help of Michel Marcus, OEIS... Thanks to the great help of Michel Marcus, OEIS Editor, he generated all the possible results of the sequences in the form of ( (composite-(d_s [composite]+1)) (composite-1) , (composite+1) ,...
 Forum: Charles Kusniec 2021-12-02, 15:50 Replies: 21 Views: 3,468 Posted By Charles Kusniec New name ideia. I think it's important to properly name these sets of prime numbers. It helps when we make comparisons and detect some properties of prime numbers. So, without wanting to be repetitive or abusive,...
 Forum: Charles Kusniec 2021-12-01, 22:22 Replies: 21 Views: 3,468 Posted By Charles Kusniec Names for the primes sets. (continuation) Regarding the names I missed for your evaluation: 6. Let's call "duet primes" a set of two primes in the form of (composite±(d_s [composite]+1)). In this case, (composite±1) are not primes. Please...
 Forum: Charles Kusniec 2021-12-01, 18:32 Replies: 21 Views: 3,468 Posted By Charles Kusniec Names for the primes sets. Regarding the names I would like to propose for your evaluation: 1. Let's call "quartet primes" a set of four primes in the form of (composite±(d_s [composite]+1)) and (composite±1). 2. Let us call...
 Forum: Charles Kusniec 2021-11-27, 15:11 Replies: 21 Views: 3,468 Posted By Charles Kusniec Dear Bur, thank you very much for your comments... Dear Bur, thank you very much for your comments and suggestions. I would not expect continuous behavior for all d_s. The reason is that all divisors d_s will always be less than sqrt(n). This means...
 Forum: Charles Kusniec 2021-11-23, 11:46 Replies: 21 Views: 3,468 Posted By Charles Kusniec There are many other interesting things to study... There are many other interesting things to study in the direction of this class of prime numbers. For example: (1) in table 1, all composites are distanced by a multiple of 12 units; (2) the same is...
 Forum: Charles Kusniec 2021-11-23, 11:27 Replies: 21 Views: 3,468 Posted By Charles Kusniec cancel cancel
 Forum: Charles Kusniec 2021-11-23, 03:38 Replies: 21 Views: 3,468 Posted By Charles Kusniec Dear JeppeSN, I don't know why, but yes I skipped... Dear JeppeSN, I don't know why, but yes I skipped 228 in Table 1. Thank you for this and your other comments, especially the tip on the sequence A055874.
 Forum: Charles Kusniec 2021-11-16, 16:49 Replies: 21 Views: 3,468 Posted By Charles Kusniec An idea for a new class of some numbers. Let us define d_s [composite] is the number of divisors in the first sequence of consecutive divisors of a composite number. Consequently, it is only possible to have the closest prime numbers in the...
 Showing results 1 to 19 of 19

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