Archived sieve reservations and discussions

[gribozavr]

Oddball: Around 3.5% of duplicates. Removed 7.9% of factors.
21876778 480000-484999_11may2010.txt
20148312 480000-484999_27may2010.txt

[Historian]

Originally Posted by gribozavr

Removed 7.9% of factors.
21876778 480000-484999_11may2010.txt
20148312 480000-484999_27may2010.txt

Interesting. What are the stats for the 485000-490000 range?

[gribozavr]

Factored 7.1% of numbers.
25947380 485000-489999__11may2010.txt
24099433 485000-489999__28may2010.txt

[gribozavr]

Also taking 140T-160T.

[Oddball]

Originally Posted by gribozavr

Oddball: Around 3.5% of duplicates.

I see. That's less than I thought (my original guess was around 10-20%).

Anyway, 5800G-6400G is complete with over 173000 factors found.

Part 1 (n=485000-486700): http://www.sendspace.com/file/v4gmyz

Part 2 (n=486700-488400): http://www.sendspace.com/file/vqpknt

Part 3 (n=488400-490000): http://www.sendspace.com/file/b6t0sh

Reserving 6550-7150G, same range.

[gribozavr]

Oddball: I've downloaded and verified your files.

[agent1]

i reserve 7150-7350 range2

[gribozavr]

Finished 120T-140T.

[mdettweiler]

30T-31T (range 1) done, 92058 factors: http://www.sendspace.com/file/3i10xg (Lennart's site is offline at the moment)

One interesting oddity about this range: it has about 92K factors, whereas my earlier 29T-30T range just a little farther up this thread has only 47K factors. Looking back through the archived sieve reservations thread, I see:
55806 in 25T-26T
53300 in 26T-27T
52073 in 27T-28T
49418 in 28T-29T
Thus, a logical progression of steadily decreasing yield as p increases, which is exactly what one would expect. Yet 30T-31T remains an anomaly, with almost twice the factors.

gribozavr, could you possibly check my 30T-31T range to get a duplication rate, and compare it with the duplication rate in 29T-30T (or any of my other 25T+ files--their yields were similar so I'd expect little difference in duplication between them)? I wonder if part of the 30T-31T file got duplicated somehow, though I can't imagine how.

Meanwhile, reserving 31T-35T--may as well take the rest of that gap and polish it off in one fell swoop.

[axn]

Originally Posted by mdettweiler

30T-31T (range 1) done, 92058 factors: http://www.sendspace.com/file/3i10xg (Lennart's site is offline at the moment)

One interesting oddity about this range: it has about 92K factors, whereas my earlier 29T-30T range just a little farther up this thread has only 47K factors.

You have managed to copy the whole list of factors twice. After the first 46037 lines, the factors start again from 30T.

[mdettweiler]

Originally Posted by axn

You have managed to copy the whole list of factors twice. After the first 46037 lines, the factors start again from 30T.

Wowsers! That's very weird. The range was processed from start to finish uninterrupted, and I didn't even open the tpsieve directory in the meantime. The only thing I can think of is some very strange as-yet-unnoticed bug in tpsieve...