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 Showing results 1 to 25 of 1000 Search took 0.25 seconds. Search: Posts Made By: sweety439
 Forum: sweety439 2022-05-21, 23:14 Replies: 415 Views: 33,447 Posted By sweety439 Smallest k such that n*k is palindromic in... Smallest k such that n*k is palindromic in dozenal (all n and k are written in dozenal) Next term (n=X1X1) is very large, such number
 Forum: sweety439 2022-05-21, 08:46 Replies: 32 Views: 1,576 Posted By sweety439 Can you prove the primality of these PRPs which... Can you prove the primality of these PRPs which are in order to prove the Riesel...
 Forum: sweety439 2022-05-21, 08:14 Replies: 32 Views: 1,576 Posted By sweety439 When will 8*13^32020+183... When will 8*13^32020+183 (http://factordb.com/index.php?id=1100000000490878060) (the largest minimal prime (https://primes.utm.edu/glossary/xpage/MinimalPrime.html) in base 13, see...
 Forum: FactorDB 2022-05-21, 07:34 Replies: 543 Views: 101,078 Posted By sweety439 Not delete the modulo operator (%), but just fix... Not delete the modulo operator (%), but just fix this operator, also suggest lower case letters for variables, upper case letters for these functions: (delete these operators: "!!" = double factorial...
 Forum: sweety439 2022-05-20, 22:20 Replies: 2 Views: 137 Posted By sweety439 A085398 (https://oeis.org/A085398)(n) is much... A085398 (https://oeis.org/A085398)(n) is much large than all A085398 (https://oeis.org/A085398)(k) for all k<=n for: * n=115, and if skip n=115, then n=119 (just larger than 115) is such n *...
 Forum: sweety439 2022-05-19, 20:13 Replies: 1,268 Views: 100,346 Posted By sweety439 All tested to n=6K, no prime or PRP found ... All tested to n=6K, no prime or PRP found bases released, reserve R181 (k=21)
 Forum: sweety439 2022-05-19, 06:43 Replies: 5 Views: 2,462 Posted By sweety439 Mersenne exponents up to 127 ... Mersenne exponents up to 127 Wagstaff exponents up to 127 2 (only Mersenne exists, since its corresponding Wagstaff number is not integer) 3, 5, 7 11 (11 is Wagstaff...
 Forum: sweety439 2022-05-19, 06:35 Replies: 5 Views: 2,462 Posted By sweety439 MM2, MM3, MM5, MM7 are primes, and (conjectured)... MM2, MM3, MM5, MM7 are primes, and (conjectured) MMp is composite if p>7. WW3, WW5, WW7 are primes, and (conjectured) WWp is composite if p>7. WM2, WM3, WM5, WM7 are primes (to satisfy the New...
 Forum: sweety439 2022-05-19, 00:30 Replies: 1,268 Views: 100,346 Posted By sweety439 Take the following bases: R165 R178 (k=19)... Take the following bases: R165 R178 (k=19) R186
 Forum: sweety439 2022-05-17, 19:38 Replies: 415 Views: 33,447 Posted By sweety439 OEIS sequences of smallest Proth primes... OEIS sequences of smallest Proth primes (k*b^n+1), smallest Riesel primes (k*b^n-1), smallest dual Proth primes (b^n+k), smallest dual Riesel primes (b^n-k): k smallest Proth primes...
 Forum: sweety439 2022-05-17, 19:28 Replies: 74 Views: 17,050 Posted By sweety439 The record values: Base 2: Appending... The record values: Base 2: Appending 1's: 1 (1) 4 (2) 12 (3) 13 (4)
 Forum: FactorDB 2022-05-16, 21:54 Replies: 440 Views: 83,274 Posted By sweety439 The generalized repunit probable prime,... The generalized repunit probable prime, R2731(685) (http://factordb.com/index.php?id=1100000000491221598), N-1 (http://factordb.com/index.php?id=1100000000491221888) has 31.345% factored, all...
 Forum: FactorDB 2022-05-15, 14:14 Replies: 543 Views: 101,078 Posted By sweety439 There were many small composites < 10^18... There were many small composites < 10^18 (https://archive.ph/9D4aU) (from a bug) in Oct 2021, and all of them had been deleted, but there were also many small primes < 10^18...
 Forum: Dobri 2022-05-14, 16:06 Replies: 53 Views: 4,589 Posted By sweety439 OEIS sequences references of your problem: ... OEIS sequences references of your problem: https://oeis.org/A007350 https://oeis.org/A007352 https://oeis.org/A199547 https://oeis.org/A306891 https://oeis.org/A038698...
 Forum: sweety439 2022-05-14, 13:36 Replies: 3 Views: 277 Posted By sweety439 We use "infinity" instead of "0" or "-1" because... We use "infinity" instead of "0" or "-1" because ... * infinity is > any finite number, this is more convenient (e.g. the smallest n such that (k^n-1)/(k-1) is prime, for k = 185, (k^n-1)/(k-1)...
 Forum: sweety439 2022-05-13, 21:23 Replies: 13 Views: 985 Posted By sweety439 First holes: b=2~401... First holes: b=2~401 (http://myfactorcollection.mooo.com:8090/cgi-bin/showFH?FBase=2&TBase=401&c0=)
 Forum: Factoring 2022-05-13, 20:14 Replies: 485 Views: 74,000 Posted By sweety439 Indeed, when I try to use N-1 proof... Indeed, when I try to use N-1 proof (https://primes.utm.edu/prove/prove3_1.html) or N+1 proof (https://primes.utm.edu/prove/prove3_2.html) for the generalized repunit primes...
 Forum: sweety439 2022-05-12, 23:20 Replies: 2 Views: 137 Posted By sweety439 Strictly generalized repunit primes Like the sense ... Generalized Cullen primes base b: primes of the form n*b^n+1 (https://oeis.org/A240234) Generalized Woodall primes base b: primes of the form n*b^n-1 (https://oeis.org/A240235)...
 Forum: sweety439 2022-05-12, 22:58 Replies: 2 Views: 137 Posted By sweety439 Curious of generalized repunit primes Mersenne conjectured that for primes p <= 257, 2^p-1 is prime if and only if p = {2, 3, 5, 7, 13, 17, 19, 31, 67, 127, 257}, but this is not true, the correct one is: for primes p <= 257, 2^p-1 is...
 Forum: Factoring 2022-05-12, 22:05 Replies: 485 Views: 74,000 Posted By sweety439 89^145-1... 89^145-1 (http://factordb.com/index.php?id=1100000000008232208) is already fully factored.
 Forum: Factoring 2022-05-12, 22:04 Replies: 86 Sticky: Links to factoring programs Views: 88,939 Posted By sweety439 https://www.numberempire.com/numberfactorizer.php... https://www.numberempire.com/numberfactorizer.php https://www.alpertron.com.ar/ECM.HTM http://www.javascripter.net/math/calculators/primefactorscalculator.htm ...
 Forum: sweety439 2022-05-12, 12:59 Replies: 329 Views: 40,989 Posted By sweety439 The minimal prime in family 1{z} in base b... The minimal prime in family 1{z} in base b (always minimal prime (start with b+1) base b) has length 2 if and only if the minimal prime in family 1{0}z in base b (always minimal prime (start with...
 Forum: sweety439 2022-05-12, 12:59 Replies: 329 Views: 40,989 Posted By sweety439 The possible length of a prime in the families... The possible length of a prime in the families (in any base b) are: (the length is possible if and only if the corresponding polynomial of the base b satisfies the condition in Bunyakovsky conjecture...
 Forum: sweety439 2022-05-08, 14:14 Replies: 329 Views: 40,989 Posted By sweety439 bases 9, 10, 12 bases 9, 10, 12
 Forum: sweety439 2022-05-07, 12:39 Replies: 329 Views: 40,989 Posted By sweety439 upload the base 9 file. upload the base 9 file.
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