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 2005-10-12, 08:10 #23 fatphil     May 2003 3×7×11 Posts Back-filling 15k=355424355 15k.org lists a gap for 15k=355424355 between n=10000 and 170000. In that gap you will find: 10982, 14779, 14852, 15331, 15434, 16202, 16303, 16831, 16923, 19875, 21161, 23702, 28127, 29972, 33404 Ongoing...
2005-10-14, 12:17   #24
fatphil

May 2003

3·7·11 Posts

Quote:
 Originally Posted by fatphil 15k.org lists a gap for 15k=355424355 between n=10000 and 170000. In that gap you will find: 10982, 14779, 14852, 15331, 15434, 16202, 16303, 16831, 16923, 19875, 21161, 23702, 28127, 29972, 33404 Ongoing...
Beginning to slow down a little, but still progress is good.

39315, 41043, 41592, 51211, 59238, 59772, 60612, 66268

Which, if I'm not mistaken, brings that k to 100 primes. Should I insert a dancing banana here?

It appears to roughly have a density of 7 per n doubling, so another 7-10 in the 70000-170000 range is likely.

2005-10-24, 11:20   #25
fatphil

May 2003

3×7×11 Posts

Quote:
 Originally Posted by fatphil 15k.org lists a gap for 15k=355424355 between n=10000 and 170000. In that gap you will find: 10982, 14779, 14852, 15331, 15434, 16202, 16303, 16831, 16923, 19875, 21161, 23702, 28127, 29972, 33404, 39315, 41043, 41592, 51211, 59238, 59772, 60612, 66268 Which, if I'm not mistaken, brings that k to 100 primes. Should I insert a dancing banana here? It appears to roughly have a density of 7 per n doubling, so another 7-10 in the 70000-170000 range is likely.
7 more was comparatively easy:

79481, 87840, 91514, 103375, 104433, 106609, 108981

ongoing...

 2005-10-27, 18:29 #26 grobie     Sep 2005 Raleigh, North Carolina 337 Posts K-55951335 I am done with this K untill forum issues are cleared up, or new project starts. Here are all primes for K-55951335 up to n=100K n=0 to 10k = 73 primes 55951335 11289 55951335 11578 55951335 11758 55951335 12712 55951335 12844 55951335 13428 55951335 14182 55951335 15692 55951335 16398 55951335 16549 55951335 17906 55951335 31544 55951335 33250 55951335 33904 55951335 43090 55951335 48710 55951335 50294 55951335 50382 55951335 55884 55951335 59910 55951335 72804 55951335 76902 55951335 81033 55951335 92671 55951335 94435 55951335 98733 (99)
2005-10-28, 09:03   #27
fatphil

May 2003

E716 Posts

Quote:
 Originally Posted by grobie I am done with this K untill forum issues are cleared up, or new project starts.
The prime-hunting task, and its worth, should be independent of the website/mailing-list/fora that its participants use to discuss things.

2005-10-28, 09:20   #28
xilman
Bamboozled!

"πΊππ·π·π­"
May 2003
Down not across

22·7·383 Posts

Quote:
 Originally Posted by fatphil The prime-hunting task, and its worth, should be independent of the website/mailing-list/fora that its participants use to discuss things.
Well said!

Paul

 2005-10-30, 20:06 #29 fatphil     May 2003 3·7·11 Posts 3 more for 15k=355424355; now the 15k.org gap looks like this: 10982, 14779, 14852, 15331, 15434, 16202, 16303, 16831, 16923, 19875, 21161, 23702, 28127, 29972, 33404, 39315, 41043, 41592, 51211, 59238, 59772, 60612, 66268, 79481, 87840, 91514, 103375, 104433, 106609, 108981, 129800, 136851, 139247 It should be less than a week before I reach the 170000 where the 15k project started searching for bigger primes. I'm prepared to take on another similar sized gap if there are any other dense candidates deserving of a complete investigation.
 2005-11-01, 00:05 #30 lsoule     Nov 2004 California 32508 Posts k=8331405 is anther one that may be of interest. It's hundredth prime occurs at n=45773 (#101 at 47239). It has also yielded 20 primes in the range n=186251-616479 The missing gap is from n=48181-181000 -Larry
2005-11-01, 08:35   #31
fatphil

May 2003

3·7·11 Posts

Quote:
 Originally Posted by lsoule k=8331405 is anther one that may be of interest. It's hundredth prime occurs at n=45773 (#101 at 47239). It has also yielded 20 primes in the range n=186251-616479 The missing gap is from n=48181-181000 -Larry
Thanks Larry!
I shall do that next. I'll start in about 5 days, I guess, and it will take about 2 weeks.

Cheers,
Phil

2005-11-08, 12:21   #32
fatphil

May 2003

3×7×11 Posts

Quote:
 Originally Posted by fatphil Thanks Larry! I shall do that next. I'll start in about 5 days, I guess, and it will take about 2 weeks.
I have seriously overerestimated the speed of my CPU...
Nevertheless, I shall do it as soon as this current batch is done (having a dry patch presently).

2005-11-15, 11:39   #33
fatphil

May 2003

3×7×11 Posts

Quote:
 Originally Posted by fatphil 15k=355424355 10982, 14779, 14852, 15331, 15434, 16202, 16303, 16831, 16923, 19875, 21161, 23702, 28127, 29972, 33404, 39315, 41043, 41592, 51211, 59238, 59772, 60612, 66268, 79481, 87840, 91514, 103375, 104433, 106609, 108981, 129800, 136851, 139247
that's all folks -- that k is now without n gaps.

The first few small primes have started on my next k too, but I'll wait until I have a whole bunch before starting to post them to keep the noise down.

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