A Sierpinski/Riesel-like problem - Page 18

sweety439 · 2017-04-25, 18:29

I reserved S3 to n=10K and found these two (probable) primes:

(823*3^6087+1)/2
(2747*3^7097+1)/2

all other k's <= 3047 were tested to n=10K with no (probable) prime found. (for the k's, see post 186)

I will also reserve the k's >= 3061 to n=10K.

sweety439 · 2017-04-27, 15:03

S3 tested to n=10K.

5 (probable) primes found, 22 remain.

(probable) primes:

(823*3^6087+1)/2
(2747*3^7097+1)/2
(10207*3^6089+1)/2
(10243*3^9731+1)/2
(10741*3^6028+1)/2

The remain k's are 621, 1187, 1801, 3007, 3047, 3061, 3307, 5321, 5743, 5893, 6427, 6569, 6575, 7927, 8161, 8227, 8467, 8609, 8863, 8987, 9263, 9449.

sweety439 · 2017-04-27, 15:05

Reserve SR42 and SR60 to n=1000 (only test the k's not in CRUS).

sweety439 · 2017-04-27, 15:19

Update a newer word file to include recent status for S3, S10, S31, R7 and R31.

sweety439 · 2017-04-27, 15:41

S6, k=1814 at n=12K (equivalent to S36, k=1814 at n=6K), no (probable) prime found.

sweety439 · 2017-05-01, 18:31

(189*31^5570+1)/10 is (probable) prime!!!

S31 has now 10 k's remain.

The remain k's for S31 are 1, 43, 51, 73, 77, 107, 117, 149, 181, 209.

The remain k's for R31 are 5, 19, 51, 73, 97.

SR31 are likely tested to at least n=6K.

sweety439 · 2017-05-01, 18:32

R43 tested to n=5K, no (probable) prime found.

sweety439 · 2017-05-02, 17:15

(319*33^5043+1)/32 is (probable) prime!!!

S33 has now 3 k's remain.

The remain k's for S33 are 67, 203, 407.

The remain k's for R33 are 257, 339.

SR33 are likely tested to at least n=6K.

sweety439 · 2017-05-02, 17:16

R30, k=1654 tested to n=6K, no (probable) prime found.

kar_bon · 2017-05-04, 07:52

(1654*30^38869-1)/29 is 3-PRP!
(1654*30^38869-1)/29 is Lucas PRP!

A few hours work done and tested with pfgw64.

How about a page of your results instead of doc's or txt-files without any explanation in it?

sweety439 · 2017-05-05, 12:39

SR42 and SR60 were tested to n=1000, only tested the k's not already in CRUS.

2017-04-25, 18:29	#188
sweety439 "99(4^34019)99 palind" Nov 2016 (P^81993)SZ base 36 2×13×113 Posts	I reserved S3 to n=10K and found these two (probable) primes: (8233^6087+1)/2 (27473^7097+1)/2 all other k's <= 3047 were tested to n=10K with no (probable) prime found. (for the k's, see post 186) I will also reserve the k's >= 3061 to n=10K. Last fiddled with by sweety439 on 2017-04-25 at 18:32

2017-05-01, 18:31	#193
sweety439 "99(4^34019)99 palind" Nov 2016 (P^81993)SZ base 36 2×13×113 Posts	(18931^5570+1)/10 is (probable) prime!!! S31 has now 10 k's remain. The remain k's for S31 are 1, 43, 51, 73, 77, 107, 117, 149, 181, 209. The remain k's for R31 are 5, 19, 51, 73, 97. SR31 are likely tested to at least* n=6K. Last fiddled with by sweety439 on 2017-05-01 at 18:41

2017-05-02, 17:15	#195
sweety439 "99(4^34019)99 palind" Nov 2016 (P^81993)SZ base 36 2×13×113 Posts	(31933^5043+1)/32 is (probable) prime!!! S33 has now 3 k's remain. The remain k's for S33 are 67, 203, 407. The remain k's for R33 are 257, 339. SR33 are likely tested to at least* n=6K. Last fiddled with by sweety439 on 2017-05-02 at 17:21

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2017-04-27, 15:03	#189
sweety439 "99(4^34019)99 palind" Nov 2016 (P^81993)SZ base 36 2938₁₀ Posts	S3 tested to n=10K. 5 (probable) primes found, 22 remain. (probable) primes: (8233^6087+1)/2 (27473^7097+1)/2 (102073^6089+1)/2 (102433^9731+1)/2 (10741*3^6028+1)/2 The remain k's are 621, 1187, 1801, 3007, 3047, 3061, 3307, 5321, 5743, 5893, 6427, 6569, 6575, 7927, 8161, 8227, 8467, 8609, 8863, 8987, 9263, 9449.

2017-04-27, 15:05	#190
sweety439 "99(4^34019)99 palind" Nov 2016 (P^81993)SZ base 36 2·13·113 Posts	Reserve SR42 and SR60 to n=1000 (only test the k's not in CRUS).

2017-04-27, 15:41	#192
sweety439 "99(4^34019)99 palind" Nov 2016 (P^81993)SZ base 36 2×13×113 Posts	S6, k=1814 at n=12K (equivalent to S36, k=1814 at n=6K), no (probable) prime found.

2017-05-01, 18:32	#194
sweety439 "99(4^34019)99 palind" Nov 2016 (P^81993)SZ base 36 2·13·113 Posts	R43 tested to n=5K, no (probable) prime found.

2017-05-02, 17:16	#196
sweety439 "99(4^34019)99 palind" Nov 2016 (P^81993)SZ base 36 2938₁₀ Posts	R30, k=1654 tested to n=6K, no (probable) prime found.

2017-05-04, 07:52	#197
kar_bon Mar 2006 Germany 101101011100₂ Posts	(165430^38869-1)/29 is 3-PRP! (165430^38869-1)/29 is Lucas PRP! A few hours work done and tested with pfgw64. How about a page of your results instead of doc's or txt-files without any explanation in it?