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Old 2020-08-30, 07:48   #2135
pepi37
 
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After milion nines:)

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Quote:
Originally Posted by sweety439 View Post
6*354^25561-1 is composite

You are right, prime is just few digits above


Starting N+1 prime test of 6*354^25565-1
Using FMA3 FFT length 18K, Pass1=384, Pass2=48, clm=2, a = 3
6*354^25565-1 may be prime. Starting Lucas sequence...
Using FMA3 FFT length 18K, Pass1=384, Pass2=48, clm=2, P = 3
6*354^25565-1 may be prime, trying to compute gcd's
6*354^25565-1 may be prime, but N divides U((N+1)/59), P = 3
Restarting Lucas sequence with P = 5
Using FMA3 FFT length 18K, Pass1=384, Pass2=48, clm=2, P = 5
6*354^25565-1 may be prime, trying to compute gcd's
U((N+1)/59) is coprime to N!
6*354^25565-1 is prime! (65167 decimal digits, P = 5) Time : 84.596 sec.

Last fiddled with by pepi37 on 2020-08-30 at 07:49
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Old 2020-08-30, 08:26   #2136
gd_barnes
 
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Nice catch guys! Typo on the page. Now corrected.
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Old 2020-08-30, 10:04   #2137
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S446 tested to n=300k (100-300k)

1 prime found, 6 remain

Results emailed - Base released
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Old 2020-08-30, 15:58   #2138
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I have finished S342 from n=100k to 200k and will release this base. I found 1 prime:


246*342^168008+1 is prime! (425740 decimal digits)


Sadly a bit too small for T5K, but still nice. Six k's are left now. Residues are in the attached zip file.
Attached Files
File Type: zip sierp-base342-100K-200K.zip (432.1 KB, 7 views)
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Old 2020-09-01, 09:40   #2139
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S495 is complete to n=10K; 1478 primes were found for n=2500-10K; 1768 k's remain; base released.
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Old 2020-09-03, 06:24   #2140
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Reserving R394 to n=300K for Ian and me.
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Old 2020-09-03, 17:34   #2141
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S402 tested to n=500k (400-500k)

nothing found, 1 remain

Results emailed - Base released
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Old 2020-09-04, 15:39   #2142
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Reserving R337 to n=300k (200-300k) for BOINC

Reserving R409 to n=300k (200-300k) for BOINC
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Old 2020-09-09, 09:42   #2143
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S256 tested to n=1M (800k-1M)

nothing found, 1 remain

Results emailed - Base released
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Old 2020-09-09, 14:52   #2144
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Reserving S328 to n=1M (900k-1M) for BOINC
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Old 2020-09-09, 17:57   #2145
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Its been overdue by months now, but i have an update for R312. I forgot about this reservation for nearly 6 months now. :c


However i have attached all found primes so far up to n=9000. Testing is now at 9,3K and this time i wont forget it. ~~hopefully~~
(there might be a few k´s that have 2 primes in it, i looked into the ini today and saw i wasnt using the "StopOnPrimedk" option)
Attached Files
File Type: txt primes found.txt (27.4 KB, 8 views)
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