Thread: The Second Megabit Drive View Single Post
2011-04-28, 09:42   #1
Kosmaj

Nov 2003

2·1,811 Posts
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.

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
 smd_2202-3000.zip (1.18 MB, 61 views)

Last fiddled with by amphoria on 2020-03-20 at 07:48