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Old 2019-11-07, 06:12   #1607
VBCurtis
 
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R36:
102088*6^759012-1 is prime! (590632 digits)

30 k's remaining. Work continues.
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Old 2019-11-08, 19:16   #1608
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Reserving S46 to n=500k (250-500k) for BOINC
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Old 2019-11-09, 08:51   #1609
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S61 tested to n=500k (300-500k)

nothing found, 9 remain

Results emailed - Base released
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Old 2019-11-09, 08:55   #1610
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Reserving S48 to n=500k (250-500k) for BOINC
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Old 2019-11-21, 20:58   #1611
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S60 tested to n=500k (400-500k)

nothing found, 19 remain

Results emailed - Base released
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Old 2019-12-02, 18:20   #1612
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S48 tested to n=500k (250-500k)

2 primes found, 7 remain

Results emailed - Base released
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Old 2019-12-07, 12:01   #1613
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S46 tested to n=500k (250-500k)

5 primes found, 13 remain

Results emailed - Base released
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Old 2019-12-07, 12:17   #1614
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Reserving S42 to n=600k (400-600k) for BOINC
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Old 2019-12-08, 14:53   #1615
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I attached some of the primes for R66. Not all of these were found by me. I just wanted to report them so that I don't lose track of them.

In one file are primes for k < 243278. Those k have been tested to n=25000. The other file is a list of primes for all where n < 11000. Putting it simply, all k have been tested to n=11000 and those under 243278 have been tested to n=25000.

I have to update my estimate. Because the range isn't turning up as many primes as I had expected, my estimate for the range is about 18 core years. I only have 12 cores working on it and some are not full time. If anyone wants to take a bite of about 2 million candidates (out of nearly 78 million), please reach out to me.
Attached Files
File Type: 7z r66.7z (9.9 KB, 82 views)
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Old 2019-12-09, 06:01   #1616
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Quote:
Originally Posted by rogue View Post
I attached some of the primes for R66. Not all of these were found by me. I just wanted to report them so that I don't lose track of them.

In one file are primes for k < 243278. Those k have been tested to n=25000. The other file is a list of primes for all where n < 11000. Putting it simply, all k have been tested to n=11000 and those under 243278 have been tested to n=25000.

I have to update my estimate. Because the range isn't turning up as many primes as I had expected, my estimate for the range is about 18 core years. I only have 12 cores working on it and some are not full time. If anyone wants to take a bite of about 2 million candidates (out of nearly 78 million), please reach out to me.
Your suspicion about fewer primes than expected is correct.

The primes file for n=10K-11K is incomplete. It only contains the primes for n=10300-10650 and n=10800-10838. Only 39% of the n-range.

n=10001-10299, 10651-10799, and 10839-11000 are missing.

In the future I suggest sorting all primes files in 2 ways to check your work:
1. By k-value to make sure all k-ranges are there.
2. By n-value to make sure all n-ranges are there.

The current left-to-right simple alphanumeric sort where k=101,000,000 is before k=99,999 in the file will not catch such errors.

2102 primes for all n=10K-11K with over 100,000 k remaining on the base is simply too few to be reasonable. There were 6511 primes for n=9K-10K. There should be > 5000 primes for n=10K-11K.

The primes file for k<243278 and n=11K-25K looks good.

If you have it, please send me the corrected n=10K-11K file and I will update the pages accordingly.

Last fiddled with by gd_barnes on 2019-12-09 at 07:05
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Old 2019-12-09, 15:10   #1617
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Quote:
Originally Posted by gd_barnes View Post
Your suspicion about fewer primes than expected is correct.

The primes file for n=10K-11K is incomplete. It only contains the primes for n=10300-10650 and n=10800-10838. Only 39% of the n-range.

n=10001-10299, 10651-10799, and 10839-11000 are missing.

In the future I suggest sorting all primes files in 2 ways to check your work:
1. By k-value to make sure all k-ranges are there.
2. By n-value to make sure all n-ranges are there.

The current left-to-right simple alphanumeric sort where k=101,000,000 is before k=99,999 in the file will not catch such errors.

2102 primes for all n=10K-11K with over 100,000 k remaining on the base is simply too few to be reasonable. There were 6511 primes for n=9K-10K. There should be > 5000 primes for n=10K-11K.

The primes file for k<243278 and n=11K-25K looks good.

If you have it, please send me the corrected n=10K-11K file and I will update the pages accordingly.
The sieve file for n > 11,000 and primes for n < 11,000 were supplied by VBCurtis. I didn't realize that the list was incomplete. VBCurtis, do you know what happened? It sucks that this might create a bit of rework.
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