Forum: sweety439
2022-08-13, 20:40
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Replies: 376
Views: 50,203
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Forum: sweety439
2022-08-13, 20:35
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Replies: 376
Views: 50,203
Some interesting sequences: (since I have a...
Some interesting sequences: (since I have a conjecture that the sum of all minimal primes (start with b+1) base b is always in https://oeis.org/A063538, i.e. it must have a prime factor >= its square...
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Forum: sweety439
2022-08-13, 20:22
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Replies: 376
Views: 50,203
Integers b>=2 sorted by A062955...
Integers b>=2 sorted by A062955 (https://oeis.org/A062955)(b):
2 (1), 3 (4), 4 (6), 6 (10), 5 (16), 8 (28), 7&10 (36), 12 (44), 9 (48), 14 (78), 11 (100), 18 (102), 15 (112), 16 (120), 13 (144),...
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Forum: sweety439
2022-08-13, 17:17
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Replies: 376
Views: 50,203
The base 19 unsolved family 5{H}5 is very low...
The base 19 unsolved family 5{H}5 is very low weight (https://www.rieselprime.de/ziki/Nash_weight) (or difficulty (https://stdkmd.net/nrr/prime/primedifficulty.txt)) but eventually should yield a...
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Forum: sweety439
2022-08-13, 14:32
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Replies: 46
Views: 7,650
27205 <-- removed
Windows version of Primo...
27205 <-- removed
Windows version of Primo (http://www.ellipsa.eu/public/primo/primo.html)
(the Linux version of Primo in that page has 31.3 MB and too large to be posted here)
MOD WARNING: DO...
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Forum: Aliquot Sequences
2022-08-13, 14:24
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Replies: 164
Views: 54,113
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Forum: sweety439
2022-08-13, 13:19
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Replies: 376
Views: 50,203
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Forum: sweety439
2022-08-13, 13:16
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Replies: 376
Views: 50,203
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Forum: sweety439
2022-08-13, 13:13
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Replies: 376
Views: 50,203
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Forum: sweety439
2022-08-13, 13:06
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Replies: 46
Views: 7,650
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Forum: sweety439
2022-08-13, 13:05
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Replies: 46
Views: 7,650
Cached copy version for Andrew Rupinsiki's...
Cached copy version for Andrew Rupinsiki's solution for puzzle 178 (https://www.primepuzzles.net/puzzles/puzz_178.htm) (although the solutions are not correct, the correct solutions are here...
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Forum: sweety439
2022-08-10, 18:56
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Replies: 376
Views: 50,203
For the smallest flexible primes base b with...
For the smallest flexible primes base b with given d dividing b-1:
4,3,2
5,4,2
6,5,2
7,3,3
7,6,2
8,7,3
9,4,2
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Forum: FactorDB
2022-08-10, 15:44
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Replies: 573
Views: 108,620
I found two differences:
1. See...
I found two differences:
1. See https://archive.ph/ayAkD and https://archive.ph/jt0sk, there is an additional “Tests” column
2. See https://archive.ph/K22Dc and https://archive.ph/Z2Kut, some...
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Forum: FactorDB
2022-08-10, 15:39
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Replies: 573
Views: 108,620
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Forum: sweety439
2022-08-09, 13:45
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Replies: 13
Views: 553
For odd prime q, 2^q-1 is Phi(q,2), and (2^q+1)/3...
For odd prime q, 2^q-1 is Phi(q,2), and (2^q+1)/3 is Phi(2*q,2), and p divides Phi(n,2) if and only if order(2,p) = n, and order(2,p) = 2 if and only if (p-1)/n is the largest m dividing p-1 such...
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Forum: sweety439
2022-08-08, 17:22
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Replies: 1,276
Views: 109,187
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Forum: sweety439
2022-08-08, 13:27
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Replies: 13
Views: 553
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Forum: Software
2022-08-08, 12:15
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Replies: 7
Views: 296
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Forum: Software
2022-08-08, 11:31
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Replies: 7
Views: 296
Do you mean N+1 primality proving method...
Do you mean N+1 primality proving method (https://primes.utm.edu/prove/prove3_2.html) or P+1 integer factorization method (https://en.wikipedia.org/wiki/Williams%27s_p_%2B_1_algorithm)?
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Forum: Aliquot Sequences
2022-08-07, 08:29
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Replies: 3,699
Views: 443,602
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Forum: sweety439
2022-08-07, 03:05
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Replies: 1,276
Views: 109,187
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Forum: sweety439
2022-08-07, 02:46
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Replies: 1,276
Views: 109,187
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Forum: sweety439
2022-08-06, 14:22
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Replies: 13
Views: 553
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Forum: sweety439
2022-08-06, 13:04
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Replies: 13
Views: 553
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Forum: NFS@Home
2022-08-06, 12:45
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Replies: 465
Views: 59,134
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