Sierp base 6 - team drive #3

[gd_barnes]

We are starting Conjectures 'R Us (CRUS) team drive #3 for Sierp base 6 starting at n=30K and continuing until all k's have a prime or we just get tired of searching! Initially included in the drive were 50 of the remaining 56 k's that needed a prime. We have now found 45 primes so there are 11 k's remaining, all of which are in the drive. See the Sierp base 6 web page for the k's remaining.

The file has been sieved for n=400K-1M. The sieve depth is P=130T. No more sieving will be needed for this range. Many thanks to Lennart for sieving P=25T-130T.

We will be running the remainder of the drive on CRUS PRPnet server port 1400. The server will hand out the final range of n=700K-1M.

Instructions for running a PRPnet server and download links can be found here. The info. specific to this server that needs to be entered into your prpclient.ini file is:

server=G1400:100:1:noprimeleftbehind.net:1400

Server info.:

CRUS PRPnet server (updated 2014-06-11 09:00 GMT):
maintained by mdettweiler on gd_barnes machine
Short identification: G1400
server: noprimeleftbehind.net
port: 1400
Sierp base 6: 16 k's remaining to n=1M
n-range: 700K-1M
currently processing at n= (complete)
Server summary: http://noprimeleftbehind.net:1400/all.html

Primes found from the team drive plus all individual efforts for Sierp base 6 for n > 30K (red indicates top-5000 primes):

prime found        by
139413*6^1279992+1 BOINC
33706*6^910462+1   mdettweiler
125098*6^896696+1  mdettweiler
31340*6^833096+1   mdettweiler
59506*6^780877+1   Lennart
10107*6^559967+1   Lennart
113966*6^511831+1  MyDogBuster
172257*6^349166+1  mdettweiler
121736*6^298935+1  mdettweiler
124221*6^278517+1  mdettweiler
51255*6^264988+1   mdettweiler
61340*6^262453+1   mdettweiler
26375*6^230349+1   Lennart
68195*6^215736+1   Flatlander
108527*6^185267+1  Lennart
74612*6^173463+1   Lennart
71301*6^172271+1   Lennart
145076*6^149946+1  Lennart
123285*6^147200+1  Lennart
157473*6^131124+1  MyDogBuster
36772*6^126672+1   MyDogBuster
118147*6^122688+1  MyDogBuster
98860*6^119849+1   MyDogBuster
72785*6^118347+1   Beyond
66520*6^96685+1    Beyond
135717*6^85064+1   Beyond
33676*6^82971+1    IronBits
125803*6^80211+1   IronBits
154797*6^77401+1   gd_barnes
90546*6^68012+1    mdettweiler
60017*6^64043+1    gd_barnes
129233*6^64027+1   gd_barnes
20721*6^63016+1    gd_barnes
98636*6^58201+1    gd_barnes
33298*6^57853+1    gd_barnes
151003*6^56371+1   gd_barnes
135500*6^53522+1   gd_barnes
27868*6^52504+1    gd_barnes
93241*6^50452+1    gd_barnes
86253*6^47459+1    gd_barnes
37815*6^39336+1    mdettweiler
18115*6^39155+1    gd_barnes
36028*6^37879+1    gd_barnes
137047*6^31754+1   gd_barnes
59606*6^30490+1    gd_barnes

Status:

n-range       tested by       Status        # of primes
1.5M-2M       BOINC           in progress
1M-1.5M       BOINC           complete        1
700K-1M       PRPnet (G1400)  complete        4
600K-700K     rogue           complete        0
540K-600K     Lennart         complete        1
480K-540K     MyDogBuster     complete        1
460K-480K     Puzzle-Peter    complete        0
400K-460K     MyDogBuster     complete        0
390K-400K     Mini-Geek       complete        0
325K-390K     mdettweiler     complete        1
324K-325K     henryzz         complete        0
322K-324K     mdettweiler     complete        0
316K-322K     Batalov         complete        0
314K-316K     henryzz         complete        0
240K-314K     mdettweiler     complete        4
228K-240K     Lennart         complete        1
214K-228K     Flatlander      complete        1
205K-214K     Lennart         complete        0
200K-205K     Flatlander      complete        0
166K-200K     Lennart         complete        3
154K-166K     Flatlander      complete        0
150K-154K     Lennart         complete        0
100K-150K     PRPnet (G3000)  complete        7
 80K-100K     LLRnet (IB6)    complete        4
 70K- 80K     gd_barnes       complete        1
 67K- 70K     mdettweiler     complete        1
 45K- 67K     gd_barnes       complete       10
 38K- 45K     mdettweiler     complete        1 (plus 1 other)
 30K- 38K     gd_barnes       complete        3

All sieved files have been tested. Eventually we will begin sieving a higher n-range.

Let's blow away those stubborn k's!


Gary

[gd_barnes]

I'll reserve the first range of n=30K-38K to get us started.

[gd_barnes]

Right out of the gate...

59606*6^30490+1 is prime

Now down to 55 k's

[mdettweiler]

Reserving 38K-45K.

[gd_barnes]

137047*6^31754+1 is prime

[mdettweiler]

Found PRP by LLR, proven with PFGW:

37815*6^39336+1 is prime!

BTW: At what n-value does this drive enter top-5000 territory?

[gd_barnes]

Originally Posted by Anonymous

Found PRP by LLR, proven with PFGW:

37815*6^39336+1 is prime!

BTW: At what n-value does this drive enter top-5000 territory?

Assuming a now-median k-value of k=90546 and the current 5000th place prime of 26267432109*2^333333-1 as of 3:10 AM EST US on 2/3/08, it would be at n=128958.

Of course it might be a smidge higher when we get there. It might actually be n=128960 or something.


Gary

[mdettweiler]

Originally Posted by gd_barnes

Assuming a now-median k-value of k=90546 and the current 5000th place prime of 26267432109*2^333333-1 as of 3:10 AM EST US on 2/3/08, it would be at n=128958.

Of course it might be a smidge higher when we get there. It might actually be n=128960 or something.


Gary

Well, it looks like we have our work cut out for us, then!

[gd_barnes]

36028*6^37879+1 is prime

[gd_barnes]

30K-38K complete; 3 primes already reported

reserving 45K-50K

[gd_barnes]

86253*6^47459+1 is prime