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-   -   15*2^n-1, n>1M Reservation Thread (https://www.mersenneforum.org/showthread.php?t=6338)

Kosmaj 2006-09-12 14:06

15*2^n-1, n>1M Reservation Thread
 
1 Attachment(s)
We are now ready to start testing 15*2^n-1, n>1M. The first segment to 1.1M has been sieved to 11.3T by amphoria, Larry, Templus and me. The average number of candidates per file is 48.9.

Happy hunting! :smile:

[B]Found primes[/B]
15*2^1084010-1 (326321 digits) by Amphoria on Sep 28, 2006
15*2^1344313-1 (404680 digits) by Amphoria on Jan 5, 2007
15*2^1837873-1 (553257 digits) by mcduck on Dec 16, 2008
15*2^2323205-1 (699356 digits) by Thomas11 on Jul 11, 2011
15*2^3668194-1 (1104238 digits) by Ivica on Oct 15, 2013

[B]Status[/B]
[CODE]
Range Tested by Status
[URL="http://kosmaj.sakura.ne.jp/rps/15/15_1Mdone.txt"]1,000,000-3,000,000[/URL] - RPS - Complete (4 primes)
3,000,000-3,010,000 - Pepi37 - Complete
3,010,000-3,130,000 - Kosmaj - Complete
3,130,000-3,150,000 - Pepi37 - Complete
3,150,000-3,170,000 - Kosmaj - Complete
3,170,000-3,172,570 - Pepi37 - Complete
3,172,570-3,200,000 - Pepi37 - Complete
3,200,000-3,210,000 - Kosmaj - Complete
3,210,000-3,220,000 - Pepi37 - Complete
3,220,000-3,300,000 - Pepi37 - Complete
3,300,000-3,320,000 - Pepi37 - Complete
3,320,000-3,400,000 - Pepi37 - Complete
3,400,000-3,500,000 - Pepi37 - Complete
3,500,000-3,600,000 - Pepi37 - Complete
3,600,000-3,650,000 - Pepi37 - Complete
3,650,000-3,800,000 - Ivica - Complete (Prime: 15*2^3668194-1)
3,800,000-3,803,000 - Pepi37 - Complete
3,803,000-3,860,000 - Ivica - Complete
3,860,000-3,900,000 - Thomas11 - Complete
3,900,000-4,080,000 - Batalov - Complete
4,080,000-4,400,000 - Batalov - Complete
4,400,000-4,700,000 - Batalov - Complete
4,700,000-4,800,000 - Thomas11 - Complete
4,800,000-5,000,000 - Thomas11 - Complete
5,000,000-5,200,000 - Thomas11 - Complete
5,200,000-5,500,000 - Thomas11 - Complete
5,500,000-5,800,000 - Thomas11 - In Progress
[/CODE]
[B]Available files[/B]
The attached file contains the 4-5M range, including already tested ones.
Please help yourself by extracting the range you want to test.
Extensively sieved by Psieve.
(36432 candidates).

Kosmaj 2006-09-12 14:21

Number of primes
 
BTW, k=15 up to n=1M so far produced 50 primes, as follows:

[CODE]#Digits #primes
2-1000 ....28
1-10k ......5
10-100k ...12
100-300k ...5[/CODE]

The full list of n's:
1, 2, 4, 5, 10, 14, 17, 31, 41, 73, 80, 82, 116, 125, 145, 157, 172, 202, 224, 266, 289, 293, 463, 1004, 1246, 2066, 2431, 2705, 4622, 5270, 7613, 21727, 21962, 40742, 41054, 60622, 83263, 83669, 91457, 103940, 104177, 108124, 115327, 161453, 172714, 454681, 568780, 656264, 712294, 902474

lsoule 2006-09-12 15:01

Taking 1000-1001!

robert44444uk 2006-09-12 17:12

Good work!
 
Good work to the sievers, that's what I say.

Taking 1001-1002

Regards

Robert Smith

lsoule 2006-09-12 19:42

Taking 1002-1003

Kosmaj 2006-09-13 01:57

Taking 1003-1005.

As Larry informed me, on a 2.8GHz P-4 it takes less than 23 hrs to process 50 candidates at n=1M. Therefore, for n>1010k I'll release test files in 2k chunks.

lsoule 2006-09-13 14:06

1000-1001 complete, no primes
Taking 1005-1006

lsoule 2006-09-13 21:41

1002-1003 complete, no primes.
Taking 1006-1007

Kosmaj 2006-09-14 04:21

1003-1004 complete, no primes.

Taking 1007-1008.

robert44444uk 2006-09-14 11:53

Taking 1008 - 1010. 1001-1002 produced no primes

Regards

Robert Smith

lsoule 2006-09-14 13:44

1005-1006 complete, no primes.
Taking 1010-1012

amphoria 2006-09-14 16:35

Taking 1012-1014.

Kosmaj 2006-09-15 02:49

1004-1005 complete, no primes.

Taking 1014-1016.

lsoule 2006-09-15 03:44

1006-1007 complete, no primes
Taking 1016-1018

Kosmaj 2006-09-15 14:17

1007-1008 complete, no primes.

amphoria 2006-09-16 05:55

1012-1014 complete, no primes.

Taking 1018-1020.

robert44444uk 2006-09-16 09:12

1008-1010 complete, no primes.

Taking 1020-1024 (4K)

Robert

lsoule 2006-09-16 14:21

1010-1012 complete, no primes
Taking 1024-1026

lsoule 2006-09-17 02:27

1016-1018 complete, no primes
Taking 1026-1028

amphoria 2006-09-17 20:21

1018-1020 complete, no primes.

Taking 1028-1030.

Kosmaj 2006-09-18 11:50

Battlemaxx taking 1030-1032.

lsoule 2006-09-18 21:29

1024-1028 complete, no primes
Taking 1032-1036 (2 files)

Kosmaj 2006-09-19 03:59

1014-1016 complete, no primes.

Taking 1036-1038.

amphoria 2006-09-19 16:37

1028-1030 complete, no primes.

Taking 1038-1040.

robert44444uk 2006-09-19 23:23

Taken on 1040-1042. Nwarly done with last range, will post when complete - hate to see the computer not at work while I sleep

Robert

Kosmaj 2006-09-20 09:17

Taking 1042-1044.

lsoule 2006-09-20 20:30

1034-1036 complete, no primes
Taking 1044-1046

Kosmaj 2006-09-21 09:55

1036-1038 almost done, taking 1046-1048.

BTW, I'd like to suggest that we collect residues (LLR results) to facilitate double-checking if necessary. I hope Larry won't mind if we send results to him :smile:

Kosmaj 2006-09-21 12:08

1030-1032 completed by B'maxx, no primes.

Taking 1048-1052.

amphoria 2006-09-21 19:58

1038-1040 complete, no primes.

Taking 1052-1054.

lsoule 2006-09-21 20:46

1032-1034 complete, no primes
Taking 1054-1056

robert44444uk 2006-09-21 21:41

1020 to 1024 no primes

taking 1056-1058

Robert

Kosmaj 2006-09-22 03:53

1036-1038 complete, no primes.

Taking 1058-1060.

lsoule 2006-09-22 20:33

1044-1046 complete, no primes
Taking 1060-1062

amphoria 2006-09-23 19:02

1052-1054 complete, no primes.

Taking 1062-1064.

robert44444uk 2006-09-24 16:25

1066 and all that
 
1040-1042 complete no primes
1056-1058 complete no primes

Taking 1064-1066 and all that :)

Regards

Robert

robert44444uk 2006-09-24 22:04

huge jump in processing time. Aiaiai

Robert

lsoule 2006-09-24 23:48

1060-1062 complete, no primes.
Taking 1066-1068

Kosmaj 2006-09-25 04:02

1042-1044 and 1046-1048 complete, no primes.

Taking 1068-1070.

lsoule 2006-09-25 12:35

1054-1056 complete, no primes
Taking 1070-1072

amphoria 2006-09-25 17:06

1062-1064 complete, no primes.

Taking 1072-1074.

Kosmaj 2006-09-26 12:31

B'maxx completed 1048-1052, no primes.

Taking 1074-1078.

robert44444uk 2006-09-26 21:00

Taking 1078-1080

1064-1066 no primes

Robert

lsoule 2006-09-27 01:32

1066-1068 complete, no primes
Taking 1080-1082

Kosmaj 2006-09-27 03:56

1068-1070 complete, no primes.

Taking 1082-1084.

amphoria 2006-09-27 20:21

1072-1074 complete, no primes.

Taking 1084-1086.

Kosmaj 2006-09-28 03:54

1058-1060 complete, no primes.

Taking 1086-1088.

lsoule 2006-09-29 01:24

1080-1082 complete, no primes
Taking 1088-1090

robert44444uk 2006-09-29 08:12

I've taken 1090-1092

Congrats Amphoria!!

Regards

Robert

Kosmaj 2006-09-29 10:56

Taking 1092-1094.

lsoule 2006-09-29 19:33

1070-1072 complete, no primes
Taking 1094-1096

amphoria 2006-09-30 12:34

1084-1086 complete, one prime (15 1084010).

Taking 1096-1098.

robert44444uk 2006-10-01 19:09

Taking 1098-1100

Did that 100K pretty quickly.

No primes in either 1078-1080 or 1090-1092

Regards

Robert

Kosmaj 2006-10-02 03:15

1082-1084, 1086-1088, and 1092-1094 complete, no primes.

Kosmaj 2006-10-02 12:28

1074-1078 done by B'maxx, no primes.

Kosmaj 2006-10-02 13:05

New files, n>1.1M, sieved to 15.5T are now ready for download! :cool:

Happy hunting!

lsoule 2006-10-02 15:25

Taking 1100-1102

amphoria 2006-10-02 16:02

1096-1098 complete, no primes.

Taking 1102-1104.

Kosmaj 2006-10-03 01:32

Taking 1104-1110 (3 files).

lsoule 2006-10-04 02:58

1094-1096 complete, no primes.
Taking 1110-1112

Kosmaj 2006-10-04 07:46

Taking also 1112-1114.

robert44444uk 2006-10-04 17:22

1090-1100 no primes
taking 1114-1116

Robert

amphoria 2006-10-04 20:45

1102-1104 complete, no primes.

Taking 1116-1118.

Kosmaj 2006-10-05 00:44

1104-1106 complete, no primes.

lsoule 2006-10-05 02:47

1100-1102 complete, no primes
Taking 1118-1120

Kosmaj 2006-10-05 13:34

B'maxx taking 1120-1124.

amphoria 2006-10-06 05:58

Taking 1124-1142 (9 files)

Kosmaj 2006-10-06 06:59

Taking 1142-1144.

amphoria 2006-10-06 16:40

1116-1118 complete, no primes

lsoule 2006-10-07 14:05

1118-1120 complete, no primes
Taking 1144-1146

robert44444uk 2006-10-08 07:12

Guys

I have to shut down this computer now, as I leave for Bangladesh this morning for 3 years. It will take me a while to get established there, so I cannot contribute for a while. Good hunting!!

Robert

1114-1116 complete no primes

lsoule 2006-10-08 18:51

1110-1112 complete, no primes
Taking 1146-1148

Kosmaj 2006-10-09 12:55

John taking 1148-1150.

[B]Robert[/B]
I hope you arrived safely to your new destination. Let us know when you are ready for your next assignment. Good luck!

lsoule 2006-10-09 17:03

1144-1146 complete, no primes
Taking 1150-1152

Kosmaj 2006-10-10 01:37

1106-1110, 1112-1114, and 1142-1144 complete, no primes.

Taking 1152-1156.

Kosmaj 2006-10-10 11:46

Battlemaxx completed 1120-1124, no primes.

Taking 1156-1160.

lsoule 2006-10-12 04:34

1150-1152 complete, no primes

lsoule 2006-10-12 13:49

Taking 1160-1162

Kosmaj 2006-10-12 21:57

John completed 1148-1150, no primes.

Taking 1162-1166.

Kosmaj 2006-10-13 06:36

1152-1156 complete, no primes.

lsoule 2006-10-13 17:26

1146-1148 complete, no primes.
Taking 1166-1168

lsoule 2006-10-15 16:59

1160-1162 complete, no primes
Taking 1168-1170

Kosmaj 2006-10-16 01:29

Taking 1170-1174.

Kosmaj 2006-10-16 13:16

1156-1160 done by Battlemaxx, no primes.

Taking 1174-1178.

lsoule 2006-10-18 03:56

1166-1168 complete, no primes
Taking 1178-1180

lsoule 2006-10-18 15:10

1168-1170 complete, no primes.
Taking 1180-1182

Kosmaj 2006-10-19 21:56

1170-1172 complete, no primes.

Taking 1182-1186.

lsoule 2006-10-20 17:01

1180-1182 complete, no primes
Taking 1186-1188

lsoule 2006-10-22 17:35

1178-1180 complete, no primes
Taking 1188-1190

lsoule 2006-10-23 02:58

1186-1188 complete
Taking 1190-1192

Kosmaj 2006-10-23 09:50

I just released 10 files at the 1.2M level. There is going to be an FFT jump at about 1197k but I'm still using 2k chunk size. If you find exe times too long please let me know, I'll reduce files to 1k. The FFT jump is from 64k to 80k and exe times may be more than 20% longer.

Kosmaj 2006-10-24 05:31

1172-1174 and 1182-1186 complete, no primes.

Taking 1192-1194.

Kosmaj 2006-10-24 13:34

Bmaxx completed 1174-1178, no primes.

Taking 1194-1196.

lsoule 2006-10-25 11:45

1190-1192 complete, no primes.
Taking 1196-1198

Kosmaj 2006-10-25 12:09

John completed 1162-1166, no primes.

Taking 1198-1202.

Kosmaj 2006-10-27 02:08

1192-1194 complete, no primes.

Taking 1202-1204.

amphoria 2006-10-28 09:44

1124-1142 complete, no primes.

Taking 1204-1206.


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