20060728, 22:43  #1 
Nov 2003
111000100110_{2} Posts 
4th RPS Drive: 20 more Ks < 300
Actually 21 Ks will be tested for primality in the following ranges of n.
Code:
Form k*2^n1 k=205 and 215 ....... 250000 <= n <= 600000 k=203, 211, 217, 241, 245, 259, 263, 265, 271, 275, 281, 283, 287, 293, 295, 299: 260000 <= n <= 600000 k=91 ................ 300000 <= n <= 600000 k=257 ............... 320000 <= n <= 600000 k=109 ............... 350000 <= n <= 600000 We have sieved all above Ks from achieved limits on Keller's page and will do some gap filling later. The priority now is to find new primes Sieveing to 3T done by Dave, Larry, Thomas, and me using ProthSieve but ksieve, NewPGen, and RieselSieve were also used. Important: Please send results of LLR tests to Kosmaj. Thank you! Result Files n=250400k: zip (1.6M) Happy hunting! Number of new primes found per k: Code:
91 3 215 1 259 6 281 299 1 109 217 3 263 283 203 3 241 3 265 1 287 1 205 2 245 271 4 293 2 211 1 257 1 275 1 295 2 Total number of new primes found so far: 35 Code:
Range Tested by Status 250,000570,000  RPS  Complete (35 primes found) 570,000571,000  LSoule  Complete 571,000572,000  Arminius  Complete 572,000573,000  amphoria  Complete 573,000575,000  Kosmaj  Complete 575,000576,000  Arminius  Complete 576,000578,000  LSoule  Complete 578,000580,000  amphoria  Complete 580,000581,000  Kosmaj  Complete 581,000582,000  Arminius  Complete 582,000583,000  LSoule  Complete 583,000584,000  Arminius  Complete 584,000585,000  amphoria  Complete 585,000587,000  Kosmaj  Complete 587,000590,000  Thomas  Complete 590,000591,000  amphoria  Complete 591,000593,000  Kosmaj  Complete 593,000594,000  VBCurtis  Complete 594,000595,000  amphoria  Complete 595,000597,000  Kosmaj  Compelte 597,000598,000  Thomas  Complete 598,000599,000  amphoria  Complete 599,000600,000  Kosmaj  Complete All files processed! The Drive is over. Last fiddled with by Kosmaj on 20061216 at 13:59 
20060728, 22:54  #2 
Nov 2004
California
2^{3}·3·71 Posts 
Taking 260262

20060728, 23:11  #3 
Nov 2003
2×1,811 Posts 
I'll take the next one 262264

20060729, 00:38  #4 
Sep 2005
Raleigh, North Carolina
337 Posts 
Taking 264 to 266

20060729, 08:19  #5 
Mar 2004
Belgium
3^{3}·31 Posts 
Taking
266to268.txt 1140 268to270.txt 1156 
20060729, 14:40  #6 
"Dave"
Sep 2005
UK
2×19×73 Posts 
Taking 270272.

20060729, 21:23  #7 
Nov 2004
California
2^{3}×3×71 Posts 
Taking 272274

20060730, 14:12  #8 
Sep 2005
Raleigh, North Carolina
151_{16} Posts 
264 to 266 complete (No Primes)

20060730, 14:30  #9 
Nov 2004
California
11010101000_{2} Posts 
260262 complete, no primes
Taking 274276 
20060730, 20:22  #10 
"Dave"
Sep 2005
UK
2·19·73 Posts 
270272 complete, no primes.
Taking 276278. 
20060731, 04:23  #11 
Nov 2003
E26_{16} Posts 
Taking also 278280.
Congrats to Larry on the first prime in the 4th Drive: 271*2^2745091 but maybe there are smaller ones. 
Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
The First Megabit Drive  Kosmaj  Riesel Prime Search  372  20200531 13:38 
Charity drive  pinhodecarlos  Lounge  0  20180126 08:02 
Sieving drive for k=301400 n=1M2M  MyDogBuster  No Prime Left Behind  42  20100321 01:14 
Will there be another drive soon???  mikedressner  Riesel Prime Search  2  20091005 04:22 
The Second RPS Drive  Kosmaj  Riesel Prime Search  368  20060906 17:59 