Sierp 37 complete n=100K-200K. Nothing found. Results emailed

Base released

I would like to reserve R39 all k's <200000 to n=25K

[QUOTE=rogue;216073]I have attached the source to srfile.c. Use this to rebuild the srfile application. With this mod -d will take either a sequence or a file. The file should be the same format as pfgw.log, one prime/PRP per line. In case anyone hasn't noticed the -d option never required the exponent to be a specific value, re, n, so using this:

srfile -d 123*456^789+1 srsieve.out

has always been perfectly acceptable.[/QUOTE]

Geoff has integrated my changes into srfile. You can d/l it from here, [url]http://sites.google.com/site/geoffreywalterreynolds/programs/srsieve[/url]

[quote=Rincewind;216604]That's so true.

I'll reserve the rest of the Riesel-Base 36 pairs.
Reserved Pairs:
<snip>
(Includes my reserved pairs, and excludes the pairs reserved by others and the one with n=500k
I generated a Sieve file for 25k < n < 500k and started sieving.
My plan is to sieve until finding a factor takes longer than a LLR-Test. After needing longer for an LLR-Test than finding a factor I'll restart sieving and so on.
The worst case could be that I can only provide sieve files for this candidates up to n=500k-
Progress will be posted.[/quote]


Rincewind,

I missed removing k=93432 from the Riesel 36 list on the pages when Serge found the prime shown in [URL="http://www.mersenneforum.org/showpost.php?p=213558&postcount=127"]this post[/URL]. You can remove k=93432 from your sieve file. You should now be sieving/testing the remaining 74 k's.

Sorry about the omission.


Gary

[U]R42 primes[/U]

10923*42^61071-1
7658*42^79316-1

34 k's remaining at n=80K, continuing.

[U]R55 sieve[/U]

Sieving for 12 k's to n=100K is done and sieve file (-G format) attached.
Sieved to P=3.3T which should be sufficient for the whole range.

S35 complete to n=25K.
63 k's eliminated, 562 k's remaining.

Primes for the last range are attached.

Results for the whole range can be found [URL="http://cid-59f933b42a589b91.skydrive.live.com/browse.aspx/.Public/CRUS?view=details"]HERE[/URL]

I've sieved for a larger range so I'd like to keep S35 reserved and take it a bit further.
I'll do a couple more 5000n ranges before posting the rest of the sieve file and release it.

S55 status
 

A few primes early on:

2010*55^26234+1
3886*55^27868+1
4360*55^29655+1

4 k's remaining at n=75K, continuing.

[quote=vmod;217791]S35 complete to n=25K.
63 k's eliminated, 562 k's remaining.

Primes for the last range are attached.

Results for the whole range can be found [URL="http://cid-59f933b42a589b91.skydrive.live.com/browse.aspx/.Public/CRUS?view=details"]HERE[/URL]

I've sieved for a larger range so I'd like to keep S35 reserved and take it a bit further.
I'll do a couple more 5000n ranges before posting the rest of the sieve file and release it.[/quote]

Excellent work Vmod! That is a lot of work.

Note that since the recommended range is now completed that I've moved all related S35 posts to this thread. That is how I do all of the recommended efforts so that we have references to historical info. as needed in one place.

I now have an official announcement: CRUS has reached a significant milestone:

All Riesel bases < 39 with a conjectured k of < 1G are now fully searched to n=25K.

All Sierp bases < 40 with a conjectured k of < 1G are now fully searched to n=25K.

We only need to search S40 from n=15K to 25K to complete all Sierp bases < 51 with a conjectured k of < 1G to n=25K. It is in the recommended thread.

Taking that one step further, the completion of S40 to n=25K would complete ALL k's <= 1M that are below a conjecture to n=25K for all Sierp bases < 51!

To clarify the last statement: S3, S7, and S15 have had k<=1M already searched to n=25K. When S40 is at n=25K, all other bases besides those will have been fully searched to n=25K.

This has been nearly finished off just in the last 2-3 months with nice efforts from Karsten, Max, and Vmod on tough bases R35, S35, and S39.

Great work everyone! :smile:

[QUOTE=gd_barnes;217725]Rincewind,

I missed removing k=93432 from the Riesel 36 list on the pages when Serge found the prime shown in [URL="http://www.mersenneforum.org/showpost.php?p=213558&postcount=127"]this post[/URL]. You can remove k=93432 from your sieve file. You should now be sieving/testing the remaining 74 k's.

Sorry about the omission.


Gary[/QUOTE]



OK, thanks for the information.

R88 completed to n=50K.
Primes:
1932*88^44406-1
3917*88^48675-1
4356*88^34395-1
4538*88^42812-1
7667*88^30768-1
8667*88^42403-1
9647*88^45274-1
...and bonus prime 1932*88^48750-1

Base released. Gary, if you really need residues, I can send the file (~500Kb zipped) via email.

Reserving S72, 100k - ?

Sieve for S33, 300k-400k should be available in a few days. I won't be reserving this.