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Old 2022-11-20, 20:51   #4148
pepi37
 
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K4 S593 at 700K
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Old 2022-11-21, 08:33   #4149
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R711 tested to n=300k (100-300k)

1 prime found, 15 remain

Results emailed - Base released
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Old 2022-11-21, 16:51   #4150
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Quote:
Originally Posted by rebirther View Post
R711 tested to n=300k (100-300k)

1 prime found, 15 remain

Results emailed - Base released
1 out of 16 for a trebling of n-range seems notably low. Low enough to make sure there wasn't a mistake somewhere?
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Old 2022-11-21, 17:01   #4151
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Quote:
Originally Posted by VBCurtis View Post
1 out of 16 for a trebling of n-range seems notably low. Low enough to make sure there wasn't a mistake somewhere?

It is as it is, bad luck, I have only one base left with the old llr 3.8.21, all other are running now with llr2 and a Gerbicz check which detects bad hardware and rerunning from the last check point. We have already planned some double checks, one is running at the moment.
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Old 2022-11-22, 03:09   #4152
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Stand-alone, these last two bases for n=100k-300k are not extremely unusual. Taken as a whole for the year of 2022, what has happened is extraordinary. We had ~20-25 bases with 2 k's remaining, all of which had no primes for either n=300k-500k or 400k-500k followed up by R88 with 0 out of 19 for n=250k-500k.

After the above, there were some bases with a normal # of primes, and then we had these two for n=100k-300k:

R711:
Sieve depth: 1e15
# of tests: 71198
expected # of primes: 3.7
actual # of primes: 1

S954:
Sieve depth: 1e15
# of tests: 60181
expected # of primes: 3.0
actual # of primes: 2 (k=119 had both primes)

By themselves, nothing to be alarmed about. It's just become a recurring theme this year. What sticks out at me the most about R711 is that there were 8 primes for n=50k-100k but only 1 prime for n=100k-300k. This happens often on the project due to sheer randomness but it's just been strangely frequent recently.
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Old 2022-11-23, 12:19   #4153
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S964 tested to n=300k (100-300k)

2 primes found, 14 remain

Results emailed - Base released
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Old 2022-11-26, 16:23   #4154
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K4 S593 at 714K extending to 800K
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Old 2022-11-30, 12:04   #4155
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R612 Completed to 25k


488 Primes found, 969 k remain


Primes attached
Attached Files
File Type: csv R612_10k_25k_primes.csv (8.6 KB, 5 views)
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