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 Showing results 1 to 25 of 1000 Search took 0.29 seconds. Search: Posts Made By: sweety439
 Forum: sweety439 2022-05-19, 20:13 Replies: 1,268 Views: 99,956 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: 2,460 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: 2,460 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: 99,956 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: 413 Views: 33,366 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: 17,032 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: 83,193 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: 541 Views: 100,842 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: 4,484 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: 271 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: 963 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: 73,882 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: 1 Views: 93 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: 1 Views: 93 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: 73,882 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: 88,876 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: 40,845 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: 40,845 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: 40,845 Posted By sweety439 bases 9, 10, 12 bases 9, 10, 12
 Forum: sweety439 2022-05-07, 12:39 Replies: 329 Views: 40,845 Posted By sweety439 upload the base 9 file. upload the base 9 file.
 Forum: sweety439 2022-05-07, 10:56 Replies: 4 Views: 141 Posted By sweety439 Well, can someone update the Windows version of... Well, can someone update the Windows version of Primo?
 Forum: Cunningham Tables 2022-05-07, 10:55 Replies: 56 Sticky: 7- table Views: 36,144 Posted By sweety439 7,379- was already done in December 2021 7,379- was already done in December 2021
 Forum: sweety439 2022-05-07, 08:51 Replies: 25 Views: 1,474 Posted By sweety439 Predict the smallest integer n such that 67607*2^n+1 is prime Sierpinski conjectured that 78557 is the smallest odd k such that k*2^n+1 is composite for all integer n (for k = 78557, k*2^n+1 must be divisible by at least one of {3, 5, 7, 13, 19, 37, 73}, thus...
 Forum: sweety439 2022-05-07, 08:44 Replies: 4 Views: 141 Posted By sweety439 Yet another trivial "do this" There is a much smaller interesting number: (64*10^10906+53)/9 (http://factordb.com/index.php?id=1000000000008860930), with "only" 10907 digits, which is 7111...1117 with 10905 1's, and is the...
 Forum: Miscellaneous Math 2022-05-06, 12:45 Replies: 29 Views: 1,022 Posted By sweety439 Well, my article... Well, my article (https://docs.google.com/document/d/e/2PACX-1vQct6Hx-IkJd5-iIuDuOKkKdw2teGmmHW-P75MPaxqBXB37u0odFBml5rx0PoLa0odTyuW67N_vn96J/pub) has many examples of algebraic factorization and...
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