Forum: Lounge
2021-01-06, 10:25
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Replies: 1,625
Views: 127,305
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Forum: Five or Bust - The Dual Sierpinski Problem
2020-11-25, 14:27
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Replies: 8
Views: 1,872
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Forum: Five or Bust - The Dual Sierpinski Problem
2020-11-24, 17:03
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Replies: 8
Views: 1,872
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Forum: And now for something completely different
2020-11-13, 11:24
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Replies: 13
Views: 859
Oh the cruelty! :lol:
When sieving for a...
Oh the cruelty! :lol:
When sieving for a 6tuplet, you eliminate a lot of possible 5tuplets because +8 or -8 gets sieved out. So you probably will have to use a larger candidate range. Does it...
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Forum: And now for something completely different
2020-11-12, 11:37
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Replies: 13
Views: 859
1)
I didn't go for a number that is N-1...
1)
I didn't go for a number that is N-1 provable. I was looking for quintuplets, so Primo would be needed anyway. The problem is that the sieve files get very sparse when you search for n-tuplets....
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Forum: And now for something completely different
2020-11-06, 11:28
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Replies: 13
Views: 859
Thanks!
That explains why the n=0 number was...
Thanks!
That explains why the n=0 number was provable via N-1. The long number fell out of a script I knocked together for CRT. I didn't investigate further as I was happy enough it ran without...
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Forum: And now for something completely different
2020-11-05, 12:04
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Replies: 13
Views: 859
New quintuplet
Hey folks,
I found a nice prime quintuplet with 2002 decimal digits:
208488047305875799520424701159167603377978422253392827160551251670223210710614891907691541641382959723840996115289...
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Forum: Conjectures 'R Us
2020-09-13, 07:42
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Replies: 298
Views: 43,384
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Forum: Computer Science & Computational Number Theory
2020-02-13, 14:50
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Replies: 33
Views: 13,422
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Forum: And now for something completely different
2020-01-23, 08:29
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Replies: 47
Views: 14,116
18416522281203*2^33222-1 ...
18416522281203*2^33222-1
18416522281203*2^33222+5
18416522281203*2^33222+11
Primo certificates for the latter two are uploaded to factordb
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Forum: And now for something completely different
2019-10-02, 19:25
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Replies: 47
Views: 14,116
I had a bit of fun with (x+2)*(ax²-3) ...
I had a bit of fun with (x+2)*(ax²-3) -1 / +5
= -3x - 6 +a(x³+2x²) -1 / +5
helpers are x for N+1 proof of the +5 candidate and x+2 for N+1 proof of the -1 candidate, so...
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Forum: Miscellaneous Math
2019-09-19, 15:40
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Replies: 16
Views: 1,032
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Forum: Conjectures 'R Us
2019-07-09, 15:44
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Replies: 3,820
Views: 259,989
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Forum: Twin Prime Search
2019-07-05, 12:53
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Replies: 13
Views: 8,066
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Forum: Twin Prime Search
2019-07-04, 18:26
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Replies: 13
Views: 8,066
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Forum: And now for something completely different
2019-06-24, 18:26
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Replies: 47
Views: 14,116
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Forum: And now for something completely different
2019-05-26, 18:25
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Replies: 9
Views: 2,761
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Forum: And now for something completely different
2019-05-23, 17:22
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Replies: 9
Views: 2,761
The gmp version of polysieve should be rather...
The gmp version of polysieve should be rather easy to adapt. It is not originally written for this kind of task, but with the correct input it will be doing this. The major modification will be...
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Forum: Conjectures 'R Us
2019-05-13, 14:41
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Replies: 2,238
Views: 173,611
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Forum: And now for something completely different
2019-05-13, 14:39
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Replies: 47
Views: 14,116
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Forum: And now for something completely different
2019-05-08, 14:45
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Replies: 47
Views: 14,116
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Forum: FactorDB
2019-05-04, 08:20
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Replies: 458
Views: 54,413
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Forum: FactorDB
2019-05-02, 15:24
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Replies: 458
Views: 54,413
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Forum: FactorDB
2019-05-01, 07:59
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Replies: 458
Views: 54,413
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Forum: FactorDB
2019-04-25, 19:53
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Replies: 458
Views: 54,413
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