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Old 2011-04-28, 09:42   #1
Kosmaj
 
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Nov 2003

E2616 Posts
Talking The Second Megabit Drive

We are starting the second megabit drive, featuring Ks between 100 and 200, and initially we are going to test the following 19 Ks from n=1M to n=1.1M:

k = 115, 117, 123, 129, 135, 147, 149, 153, 155,
157, 159, 171, 173, 175, 179, 183, 185, 189, 193

When we reach 1.1M we might replace some Ks.
Please help yourself and happy hunting!

Update (June 19, 2015): Extending the drive beyond n=2M and adding the following 11 Ks: 131, 133, 137, 139, 141, 143, 145, 161, 177, 181, and 187.

Update (March 20th, 2020): Removing k=193 from the drive to be searched by an individual.

Status
Code:
    Range of n        Tested by        Status
1,000,000-1,700,000 - RPS            - Complete (38 primes)
1,700,000-1,708,000 - Carlos         - Complete (183*2^1707182-1 is prime)
1,708,000-1,720,000 - Carlos         - Complete (175*2^1711779-1 is prime)
1,720,000-1,750,000 - kracker        - Complete
1,750,000-1,762,000 - Carlos         - Complete
1,762,000-1,780,000 - kracker        - Complete (123*2^1779728-1 is prime)
1,780,000-1,830,000 - Thomas         - Complete
1,830,000-1,838,000 - lsoule         - Complete
1,838,000-1,900,000 - kracker        - Complete
1,900,000-1,902,000 - lsoule/Carlos  - Complete
1,902,000-1,950,000 - kracker        - Complete (149*2^1945668-1 is prime)
1,950,000-1,952,000 - Kosmaj         - Complete
1,952,000-1,980,000 - kracker        - Complete
1,980,000-2,042,000 - Carlos         - Complete (143*2^2007888-1 is prime)
2,042,000-2,054,000 - amphoria       - Complete
2,054,000-2,056,000 - Kosmaj         - Complete
2,056,000-2,068,000 - amphoria       - Complete
2,068,000-2,070,000 - Kosmaj         - Complete
2,070,000-2,094,000 - amphoria       - Complete (159*2^2081069-1 is prime)
2,094,000-2,096,000 - Kosmaj         - Complete
2,096,000-2,108,000 - amphoria       - Complete 
2,108,000-2,110,000 - Kosmaj         - Complete
2,110,000-2,120,000 - amphoria       - Complete (117*2^2117600-1 is prime)
2,120,000-2,170,000 - amphoria       - Complete (185*2^2127966-1 is prime)
2,170,000-2,180,000 - amphoria       - Complete (187*2^2172693-1 is prime)
2,180,000-2,200,000 - amphoria       - Complete
2,200,000-2,202,000 - unconnected    - Complete
Test Files
Extensively sieved by Psieve (the latest sieve file of July 31, 2011)

Attached is a file containing the list of candidates from n=2202k to 3000k. Note that it has not been broken into chunks so you will need to copy the first line into a file as well as the list of candidates you are searching.
Attached Files
File Type: zip smd_2202-3000.zip (1.18 MB, 24 views)

Last fiddled with by amphoria on 2020-03-20 at 07:48
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Old 2011-04-28, 09:43   #2
Kosmaj
 
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2·1,811 Posts
Default Found Primes

115 [2]: 1141719, 1524183
117 [5]: 1104138, 1210282, 1302764, 1554601, 1618434
123 [3]: 1225115, 1241690, 1779728
129 [1]: 1376223
135 [1]: 1288177
143 [1]: 2007888
147 [3]: 1273684, 1374216, 1499333
149 [4]: 1054092, 1138804, 1541152, 1945668
153 [2]: 1215327, 1245154
155 [1]: 1207424
157 [1]: 1085121
159 [3]: 1004981, 1240229, 2081069
171 [2]: 1362662, 1575999
173 [2]: 1098914, 1504740
175 [4]: 1065181, 1162313, 1571521, 1711779
179 [2]: 1464720, 1636808
183 [4]: 1095896, 1219415, 1618775, 1707182
185 [1]: 1234730
189 [1]: 1547744
193 [1]: 1268399

Total: 43 primes
(Found primes for 20 out of 30 Ks)

Last fiddled with by Kosmaj on 2019-02-09 at 06:58
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Old 2011-04-28, 11:10   #3
unconnected
 
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Taking 1000-1004.
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Old 2011-04-28, 11:46   #4
Kosmaj
 
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2·1,811 Posts
Default

Taking 1004-1006.
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Old 2011-04-29, 09:14   #5
Thomas11
 
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3×5×127 Posts
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Taking 1006-1010.
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Old 2011-05-02, 02:13   #6
Kosmaj
 
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Taking also 1010-1012.
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Old 2011-05-05, 14:33   #7
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111011100012 Posts
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Taking 1012-1016.
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Old 2011-05-07, 13:08   #8
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1004-1006 complete, one prime.

Taking 1016-1018.
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Old 2011-05-12, 13:32   #9
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1006-1010 complete, no primes.
Taking 1018-1020.
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Old 2011-05-13, 01:20   #10
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1010-1012 complete, no primes.

Taking 1020-1022.
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Old 2011-05-13, 13:16   #11
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Taking 1022to1024.
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