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2020-04-25, 17:47   #353
sweety439

Nov 2016

1001101101112 Posts

Quote:
 Originally Posted by sweety439 Smallest odd prime p such that (a^p-b^p)/(a-b) is (probable) prime for 2<=a<=50, -a
The top 12 PRPs are: (only sorted by exponent)

(48^58543-47^58543)/(48-47)
(50^56099+43^56099)/(50+43)
(46^45281+11^45281)/(46+11)
(49^38069-46^38069)/(49-46)
(47^32833-33^32833)/(47-33)
(18^25667-1^25667)/(18-1)
(49^16747+46^16747)/(49+46)
(38^16747+7^16747)/(38+7)
(37^13217-34^13217)/(37-34)
(47^9181+37^9181)/(47+37)
(31^6961-6^6961)/(31-6)
(47^5641-23^5641)/(47-23)

2020-05-05, 01:10   #354
sweety439

Nov 2016

9B716 Posts

...........
Attached Files
 numbers k such that n followed by k 1s is prime.txt (64.0 KB, 64 views)

2020-05-29, 18:03   #355
sweety439

Nov 2016

9B716 Posts

Update my program of unique primes.
Attached Files
 program of unique prime (better program).txt (200 Bytes, 54 views)

2020-05-29, 18:06   #356
sweety439

Nov 2016

46678 Posts

Quote:
 Originally Posted by sweety439 Update my program of unique primes.
Fixed the program.
Attached Files
 program of unique prime (better program).txt (247 Bytes, 60 views)

 2020-06-04, 00:52 #357 sweety439     Nov 2016 3·829 Posts See https://dozenal.fandom.com/wiki/Conj...numbers_base_n for the conjectured smallest Sierpinski/Riesel numbers for bases <= 1000, also see https://dozenal.fandom.com/wiki/Sier...s_sorted_by_CK for these conjectures sorted by conjectured k
2020-06-27, 07:09   #358
sweety439

Nov 2016

3·829 Posts

Update my program.
Attached Files
 program of dozenal English name.txt (794 Bytes, 44 views)

2020-07-05, 14:36   #359
sweety439

Nov 2016

3×829 Posts

Update files
Attached Files
 k = 2 to 12.zip (50.2 KB, 44 views)

2020-07-17, 09:05   #360
sweety439

Nov 2016

3×829 Posts

.......
Attached Files
 Racaman sequence.txt (15.3 KB, 36 views) inverse of Racaman sequence.txt (15.6 KB, 41 views)

2020-09-12, 14:45   #361
sweety439

Nov 2016

3·829 Posts

Attached Files
 program of Sierpinski.txt (380 Bytes, 24 views) program of Riesel.txt (696 Bytes, 24 views)

 2020-11-06, 10:18 #362 sweety439     Nov 2016 248710 Posts The PARI/GP programs for primes and dozenal numbers, stored in GitHub: https://github.com/xayahrainie4793/Prime-program
2020-11-11, 15:11   #363
sweety439

Nov 2016

3·829 Posts

Attached Files
 numbers n such that Phi(n,a,b) is prime.txt (66.2 KB, 5 views) numbers k such that Phi_k(n,n-1) is prime.txt (68.2 KB, 6 views) numbers k such that Phi_n(k,k-1) is prime.txt (73.5 KB, 4 views) smallest a such that Phi(n,a,b) is prime.txt (45.3 KB, 6 views)