Forum: Cunningham Tables
2021-01-16, 00:17
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Replies: 218
Views: 36,224
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Forum: Msieve
2021-01-15, 17:12
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Replies: 178
Views: 32,276
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Forum: Factoring
2021-01-15, 12:24
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Replies: 888
Views: 70,168
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Forum: And now for something completely different
2021-01-12, 09:21
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Replies: 2
Views: 150
UTM Prime pages
Is anyone else getting certificate errors currently when accessing primes.utm.edu?
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Forum: Software
2021-01-07, 22:21
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Replies: 101
Views: 12,126
What is holding srsieve2 back from reaching...
What is holding srsieve2 back from reaching sr2sieve's speed? How come the sieving % was only 23%? How does srsieve2cl compare when running on the cpu? I assume sr1sieve is still much faster than...
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Forum: Prime Gap Searches
2021-01-07, 10:40
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Replies: 124
Views: 17,243
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Forum: Prime Gap Searches
2021-01-06, 20:47
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Replies: 124
Views: 17,243
What is the logic behind searching one side...
What is the logic behind searching one side before the other? Wouldn't it be better to test the denser central region first(assuming a primorial divisor) as it will probably be needed for a record?
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Forum: Software
2021-01-04, 11:34
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Replies: 500
Views: 50,958
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Forum: Prime Gap Searches
2021-01-02, 13:20
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Replies: 214
Views: 34,663
What does that change? It is still worth...
What does that change? It is still worth double-checking the gaps to some extent. At least the endpoints. Why do some of the commits have failed checks? I assume these have been sorted,
I added a...
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Forum: Prime Wiki
2021-01-02, 00:42
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Replies: 199
Views: 31,348
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Forum: Prime Wiki
2021-01-01, 19:30
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Replies: 199
Views: 31,348
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Forum: Prime Wiki
2021-01-01, 00:34
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Replies: 199
Views: 31,348
Sorry, I should have done that before. I have...
Sorry, I should have done that before. I have seen this on multiple pcs so I assumed it was everyone. I have just tried other browsers and it works. The issue seems to be Chrome(both on windows and...
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Forum: Prime Wiki
2020-12-31, 16:43
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Replies: 199
Views: 31,348
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Forum: Prime Gap Searches
2020-12-30, 20:55
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Replies: 40
Views: 1,385
I am having a few issues with predictions not...
I am having a few issues with predictions not matching reality.
Why is sum(prob_minmerit) being overestimated so much in this case? I am searching m * 9973#/208110 +- x. min_merit has been set...
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Forum: Forum Feedback
2020-12-25, 01:10
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Replies: 24
Views: 451
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Forum: Factoring
2020-12-23, 11:29
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Replies: 888
Views: 70,168
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Forum: Factoring
2020-12-22, 20:23
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Replies: 888
Views: 70,168
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Forum: Hardware
2020-12-22, 16:58
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Replies: 2
Views: 212
Ampere Altra
This looks like a very impressive Arm CPU. 80 N1 cores at 3.3 GHz. Shame about the $4050 price tag. Maybe 32 cores at 1.7 GHz for $800 is better value.
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Forum: Factoring
2020-12-19, 09:46
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Replies: 888
Views: 70,168
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Forum: Factoring
2020-12-19, 01:01
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Replies: 888
Views: 70,168
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Forum: Factoring
2020-12-19, 00:37
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Replies: 888
Views: 70,168
Unless I have made a mistake:
...
Unless I have made a mistake:
f(x)=x^8+x^7-7x^6-6x^5+15x^4+10x^3-10x^2-4x+1
g(x)=6115909044841454629x-6115909044841454629^2-1
What size have the previous reciprocal octics been?
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Forum: Factoring
2020-12-18, 23:52
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Replies: 888
Views: 70,168
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Forum: Factoring
2020-12-18, 23:18
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Replies: 888
Views: 70,168
(103^173-1)/102...
(103^173-1)/102 (http://factordb.com/index.php?query=%28103%5E173-1%29%2F102) is 347 digits
(2666986681^37-1)/2666986680 (http://factordb.com/index.php?query=%282666986681%5E37-1%29%2F2666986680) is...
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Forum: Prime Gap Searches
2020-12-16, 23:10
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Replies: 40
Views: 1,385
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Forum: Prime Gap Searches
2020-12-16, 00:30
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Replies: 40
Views: 1,385
I will have a go at this over the Christmas...
I will have a go at this over the Christmas break(starts Friday for me) I have some git experience so I should be able to work that out. Part of my issue will be lack of python knowledge although...
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