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

 Showing results 1 to 25 of 1000 Search took 0.19 seconds. Search: Posts Made By: sweety439
 Forum: sweety439 2021-08-02, 11:13 Replies: 0 Views: 67 Posted By sweety439 Unsolved problems about primes and number theory collect 1. Grand Riemann hypothesis (https://en.wikipedia.org/wiki/Grand_Riemann_hypothesis) 1a. Extended Riemann hypothesis (https://en.wikipedia.org/wiki/Extended_Riemann_hypothesis) 1aa. Generalized...
 Forum: Aliquot Sequences 2021-08-02, 09:36 Replies: 1,267 Views: 126,443 Posted By sweety439 The page has "Primorials", but does not have... The page has "Primorials", but does not have "Factorials", I try to take the factorials (https://oeis.org/A000142). Also, I try the highly abundant numbers (https://oeis.org/A002093), since they...
 Forum: Aliquot Sequences 2021-08-02, 03:50 Replies: 1 Views: 6,880 Posted By sweety439 Problem: Are there any sociable number cycles... Problem: Are there any sociable number cycles such that not all numbers have same parity?
 Forum: Prime Wiki 2021-08-02, 03:47 Replies: 212 Sticky: Prime-Wiki Views: 60,067 Posted By sweety439 There are links wikipedia:Morrison's Theorem... There are links wikipedia:Morrison's Theorem (https://en.wikipedia.org/wiki/Morrison%27s_Theorem) and wikipedia:Selfridge's Cube Root Primality Test...
 Forum: Conjectures 'R Us 2021-08-02, 03:38 Replies: 958 Sticky: Report top-5000 primes here Views: 113,749 Posted By sweety439 Nice!!! Now S70 become a 1k base, and it is now... Nice!!! Now S70 become a 1k base, and it is now the 1k Sierp base with 2nd largest CK (the 1st largest CK is S430), and if proven (I think that both this base and S430 can be proven when tested to...
 Forum: Aliquot Sequences 2021-08-02, 03:28 Replies: 1,267 Views: 126,443 Posted By sweety439 276 is interesting since it is the smallest... 276 is interesting since it is the smallest number whose aliquot sequence has not yet been fully determined. However, 276^2 immediately terminated at the prime 146683. 276^3 currently at...
 Forum: sweety439 2021-08-02, 00:17 Replies: 374 Views: 24,700 Posted By sweety439 currently test limit for A039951 currently test limit for A039951
 Forum: sweety439 2021-07-31, 08:53 Replies: 157 Views: 14,809 Posted By sweety439 Update newest data for minimal primes (start with... Update newest data for minimal primes (start with b+1) in bases 2<=b<=16 Newest condensed table: b number of quasi-minimal primes base b base-b form of largest known quasi-minimal prime base...
 Forum: sweety439 2021-07-31, 08:35 Replies: 157 Views: 14,809 Posted By sweety439 Related search for minimal primes (generalized... Related search for minimal primes (generalized form: (a*b^n+c)/d) in PRP top: b^n+c (http://www.primenumbers.net/prptop/searchform.php?form=b%5En%2Bc&action=Search) b^n-c...
 Forum: Riesel Prime Search 2021-07-31, 04:22 Replies: 28 Views: 17,943 Posted By sweety439 Nash weight seems to be also exist for... Nash weight seems to be also exist for (a*b^n+c)/d with d>1, see https://stdkmd.net/nrr/prime/primedifficulty.txt, the difficulty is the Nash weight of the form.
 Forum: Math 2021-07-31, 04:19 Replies: 27 Views: 4,315 Posted By sweety439 One link in page... One link in page http://www.hoegge.dk/mersenne/NMC.html has a typo: in column "2^p - 1 prime" for p = 15135397, the link should be https://mersenne.org/M15135397 rather than...
 Forum: FactorDB 2021-07-31, 04:16 Replies: 471 Views: 82,280 Posted By sweety439 The number 650^498101*4/5^996202... The number 650^498101*4/5^996202 (http://factordb.com/index.php?id=1100000002636244627) cannot be factored, when I report factor either 2 or 13, factordb gets oo loop
 Forum: sweety439 2021-07-31, 03:54 Replies: 157 Views: 14,809 Posted By sweety439 Newest pdf file for this problem attached in post... Newest pdf file for this problem attached in post #131 (https://mersenneforum.org/showpost.php?p=569180&postcount=131)
 Forum: Wagstaff PRP Search 2021-06-29, 17:02 Replies: 16 Views: 1,648 Posted By sweety439 Only run Fermat test is dangerous, as there are... Only run Fermat test is dangerous, as there are many Carmichael numbers, see https://en.wikipedia.org/wiki/Baillie%E2%80%93PSW_primality_test#The%20danger%20of%20relying%20only%20on%20Fermat%20tests,...
 Forum: Wagstaff PRP Search 2021-06-29, 16:59 Replies: 16 Views: 1,648 Posted By sweety439 Can you test all Wagstaff exponents below it?... Can you test all Wagstaff exponents below it? Currently only the Wagstaff exponents below 10 million are tested, see https://mersenneforum.org/showthread.php?t=24185
 Forum: sweety439 2021-06-29, 16:29 Replies: 157 Views: 14,809 Posted By sweety439 README for the file... README for the file https://docs.google.com/spreadsheets/d/e/2PACX-1vTKkSNKGVQkUINlp1B3cXe90FWPwiegdA07EE7-U7sqXntKAEQrynoI1sbFvvKriieda3LfkqRwmKME/pubhtml: * 12{3}45 means family {1245, 12345,...
 Forum: FactorDB 2021-06-29, 08:37 Replies: 14 Views: 1,828 Posted By sweety439 I typed "B10... I typed "B10 (http://factordb.com/index.php?query=B10)" in factordb, and the result number is still 10 instead of Bell (https://oeis.org/A000110)(10) = 115975
 Forum: sweety439 2021-06-28, 09:24 Replies: 12 Views: 6,610 Posted By sweety439 this... this (https://raw.githubusercontent.com/xayahrainie4793/text-file-stored/main/k%3E%3D2%20such%20that%20Phi(n%2Ck)%20is%20prime) is a list for all 2<=k<=4096 such that Phi(n,k) is prime. We noticed...
 Forum: sweety439 2021-06-27, 13:19 Replies: 157 Views: 14,809 Posted By sweety439 We can use the sense of... We can use the sense of http://www.iakovlev.org/zip/riesel2.pdf to conclude that the unsolved families (unsolved families are families which are neither primes (>base) found nor can be proven to...
 Forum: sweety439 2021-06-27, 12:47 Replies: 1,244 Views: 76,132 Posted By sweety439 Riesel problems... Riesel problems (https://docs.google.com/document/d/e/2PACX-1vReofbA92gRRhzqjKA3TKOqsukineM59WpM56LuRnbhB7bBFSYL6w-aTJ2IpJPWpiyCmPLOSE6gqDrR/pub) and Sierpinski problems...
 Forum: Sierpinski/Riesel Base 5 2021-06-27, 09:05 Replies: 4 Sticky: Project Description Views: 13,052 Posted By sweety439 Now there are: 30 Sierpinski k's remain (at... Now there are: 30 Sierpinski k's remain (at n=3.3M): {6436, 7528, 10918, 26798, 29914, 31712, 36412, 41738, 44348, 44738, 45748, 51208, 58642, 60394, 62698, 64258, 67612, 67748, 71492, 74632,...
 Forum: sweety439 2021-06-26, 13:44 Replies: 0 Views: 101 Posted By sweety439 A curious of generalized repunit primes For given base b and given prime p: (b^p-1)/(b-1) (http://www.fermatquotient.com/PrimSerien/GenRepu.txt) is divisible by p if and only if p divides b-1 (b^p+1)/(b+1)...
 Forum: sweety439 2021-06-25, 07:29 Replies: 374 Views: 24,700 Posted By sweety439 If I only research a problem in dozenal (base... If I only research a problem in dozenal (base 12), or if I only research a problem in bases <= 12, then I use X for ten and E for eleven, however, if I research a problem in bases including those >...
 Forum: FactorDB 2021-06-25, 07:09 Replies: 14 Views: 1,828 Posted By sweety439 I want to add the first n digits for many... I want to add the first n digits for many mathematical constants (pi, e, gamma, sqrt(2), ln(2), golden ratio, ...) in all bases 2<=b<=36, also the Smarandache numbers (https://oeis.org/A007908) and...
 Forum: FactorDB 2021-06-25, 07:07 Replies: 14 Views: 1,828 Posted By sweety439 I suggest that factordb can add all these... I suggest that factordb can add all these functions (https://mersenneforum.org/showpost.php?p=579527&postcount=12)
 Showing results 1 to 25 of 1000

All times are UTC. The time now is 08:33.

Tue Aug 3 08:33:22 UTC 2021 up 11 days, 3:02, 0 users, load averages: 2.04, 2.05, 2.17