12121 Search - 27*2^n-1

 

Searching since 3/1/2005 for large primes of the form 27*2^n-1
This project is a sister of the 12121 Search.

A NEW LLR VERSION HAS BEEN RELEASED! Get it here If you are using this version, please add the following line to your llr.ini file, so that you can be credited properly for your work.

verbose = 1

Top Ranking 2721Search participants

Our Top Primes
Most recent: 6/29/2008 - 27*2^1253870-1 found by one of the searches founding members, Jutral! His prime is the largest 27K yet and is ranked 143 on the all time list at 377454 digits. Keep up the good work everyone.

-Completed ranges appear in green, reserved ranges in blue, and available ranges in orange

Interested in helping out with this project but don't know where to begin? Check out the Quick Start guide

Range of n (#candidates) Reserved by Primes found for n=...
1-1,614,005 27K ...
27_1614020-1615604 (75)
[raphael hogger]
none
27_1615625-1617370 (75)
[Ho1]
none
27_1617389-1619180 (75)
[Ho1]
none
27_1619188-1621022 (75)
[lavalamp]
none
27_1621081-1622602 (75)
[lavalamp]
none
27_1622638-1623964 (75)
[lavalamp]
none
27_1623977-1625438 (75)
[lavalamp]
none
27_1625450-1626938 (75)
[lavalamp]
none
27_1626989-1628662 (75)
[Jani Iltanen]
none
27_1628690-1629974 (71)
[lavalamp]
none
27_1630000-1635000 (229)
[Ho1]
none
27_1635000-1640000 (251)
[RPS]
none
27_1640000-1645000 (224)
[Ho1]
none
27_1645000-1650000 (246)
[justin]
none
27_1650000-1655000 (236)
[RPS]
none
27_1655000-1660000 (213)
[RPS]
none
27_1660000-1665000 (255)
[RPS]
none
27_1665052-1667042 (75)
[Ho1]
none
27_1667054-1668694 (75)
[Ho1]
none
27_1668697-1670305 (76)
[Ho1]
none
27_1670338-1671820 (76)
[Ho1]
none
27_1671868-1673402 (76)
[rdetroia]
none
27_1673501-1674997 (75)
[Ho1]
none
27_1675000-1680000 (222)
[RPS]
none
27_1680000-1685000 (236)
[justin]
none
27_1685008-1686680 (75)
[Ho1]
none
27_1686721-1688380 (75)
[Ho1]
none
27_1688401-1690114 (75)
[Ho1]
none
27_1690117-1691902 (75)
[Ho1]
none
27_1691914-1693469 (75)
[lavalamp]
none
27_1693505-1694938 (70)
[lavalamp]
none
27_1695000-1700000 (240)
[RPS]
none
27_1700000-1733000 (1639)
[RPS]
none
27_1733002-1734385 (60)
[Ho1]
none
27_1734394-1735700 (60)
[Ho1]
none
27_1735708-1737094 (60)
[Ho1]
none
27_1737097-1738318 (60)
[Ho1]
none
27_1738325-1739669 (60)
[Ho1]
none
27_1739677-1740769 (60)
[Ho1]
none
27_1740794-1742282 (60)
[Ho1]
none
27_1742290-1743929 (60)
[Ho1]
none
27_1743940-1745092 (60)
[Ho1]
none
27_1745108-1746332 (60)
[Ho1]
none
27_1746337-1747402 (60)
[Ho1]
none
27_1747453-1748654 (60)
[Ho1]
none
27_1748710-1749913 (60)
[Ho1]
none
27_1749940-1751518 (60)
[Death [Ukraine]]
none
27_1751540-1752710 (60)
[Ho1]
none
27_1752721-1754270 (60)
[Ho1]
none
27_1754272-1755662 (60)
[Ho1]
none
27_1755674-1757282 (60)
[Ho1]
none
27_1757300-1758430 (60)
[Ho1]
none
27_1758448-1759741 (60)
[Ho1]
none
27_1759762-1761181 (60)
[rdetroia]
none
27_1761229-1762532 (60)
[rdetroia]
none
27_1762573-1763654 (60)
[Ho1]
none
27_1763704-1765129 (60)
[Ho1]
none
27_1765150-1766218 (60)
[Ho1]
none
27_1766237-1767314 (60)
[Ho1]
none
27_1767322-1768768 (60)
[rdetroia]
none
27_1768790-1770002 (60)
[Ho1]
none
27_1770004-1771342 (60)
[Ho1]
none
27_1771345-1772698 (60)
[Ho1]
none
27_1772710-1773745 (60)
[Ho1]
none
27_1773758-1774852 (60)
[rdetroia]
none
27_1774861-1776040 (60)
[Ho1]
none
27_1776041-1777342 (60)
[Ho1]
none
27_1777382-1778530 (60)
[Ho1]
none
27_1778540-1779782 (60)
[Ho1]
none
27_1779790-1781198 (60)
[Ho1]
none
27_1781221-1782404 (60)
[rdetroia]
none
27_1782428-1783513 (60)
[Ho1]
none
27_1783565-1785142 (60)
[Ho1]
none
27_1785160-1786370 (60)
[Ho1]
none
27_1786382-1787629 (60)
[Ho1]
none
27_1787653-1789048 (60)
[rdetroia]
none
27_1789064-1790318 (60)
[Ho1]
none
27_1790345-1791710 (60)
[Ho1]
none
27_1791862-1793312 (60)
[Ho1]
none
27_1793318-1794664 (60)
[Ho1]
none
27_1794685-1795964 (60)
[Ho1]
none
27_1795997-1797028 (60)
[Ho1]
none
27_1797052-1798225 (60)
[Ho1]
none
27_1798237-1799644 (60)
[Ho1]
none
27_1799662-1801012 (60)
[Ho1]
none
27_1801030-1802498 (60)
[Ho1]
none
27_1802501-1803920 (60)
[justin]
none
27_1803950-1805140 (60)
[justin]
none
27_1805161-1806452 (60)
[justin]
none
27_1806458-1807700 (60)
[Ho1]
none
27_1807708-1808989 (60)
[Ho1]
none
27_1809017-1810421 (60)
[Ho1]
none
27_1810462-1811642 (60)
[Ho1]
none
27_1811677-1812832 (60)
[Ho1]
none
27_1812844-1814185 (60)
[Ho1]
none
27_1814201-1815412 (60)
[Ho1]
none
27_1815413-1816861 (60)
[Ho1]
none
27_1816862-1818028 (60)
[Chris Peace]
none
27_1818068-1819142 (60)
[justin]
none
27_1819148-1820558 (60)
[justin]
none
27_1820618-1821881 (60)
[Ho1]
none
27_1821913-1823318 (60)
[Ho1]
none
27_1823324-1824638 (60)
[Ho1]
none
27_1824641-1825780 (60)
[Ho1]
none
27_1825820-1826965 (60)
[Ho1]
none
27_1826978-1828382 (60)
[Ho1]
none
27_1828453-1829641 (60)
[Ho1]
none
27_1829665-1831132 (60)
[Ho1]
none
27_1831148-1832489 (60)
[Ho1]
none
27_1832497-1833889 (60)
[Ho1]
none
27_1833913-1835054 (60)
[Ho1]
none
27_1835089-1836224 (60)
[Ho1]
none
27_1836238-1837588 (60)
[Ho1]
none
27_1837622-1839304 (60)
[Ho1]
none
27_1839328-1840580 (60)
[Ho1]
none
27_1840582-1841902 (60)
[Ho1]
none
27_1841912-1843153 (60)
[Ho1]
none
27_1843160-1844204 (60)
[Ho1]
none
27_1844213-1845449 (60)
[Ho1]
none
27_1845514-1846798 (60)
[lavalamp]
none
27_1846804-1847908 (60)
[lavalamp]
none
27_1847918-1849397 (60)
[lavalamp]
none
27_1849468-1849970 (17)
[lavalamp]
none


Reserve a Range

Reserve:
Name:
Email: (So I can contact you if there is a problem with your range)



Submit Results

Submitting for range:
lresults.txt file:

Project contributors include or have included: Justin Van Klein, Ryan Jackson, Rodger Ewing, Daniel Medici, JF Boyer, Nick Thornton, Cedric Vonck, Michael Haas, Ed Dillo, Frank Clowes, Veejay Maharaj, James Burt, George Koos-Hutas, Chris Chatfield, Janne Suikkala, Mike Curtis, William W. Mikrut, Arnold Padro, Tony Galvan, Raffaele De Troia

Quick Start Guide


Modified from SlashDudes original post

1. If you don't have LLR.exe, download llr.zip here!
2. Reserve a range that is currently available by right clicking on the word "Available" and saving the target to your computer, and requesting the range with the above form, so that two people don't work on the same set
3. Open LLR, and select the "Test" menu, then "Input Data"
In the "Input File (From NewPGEN):" box enter the file from step 2 (IE - 121_200000-250000.txt)
In the "Output file:" box, enter prime.txt
Make sure "starting at line number:" is set to 1
Click "OK"(If the LLR icon doesn't turn from "Red" to "Green" repeat step 3, and it will start the 2nd time you hit "OK")
4. If LLR finds a prime number, it will appear in your prime.txt output file. This number will qualify for the top 5000 prime list! If you don't have a 15k top 5000 prime list prover code, I'll help you set one up so you will receive credit in the record books for the new prime!
5. When the test is complete, submit the results file using the above form.
6. Get another range and return to step 2.

Confused? Stuck? Email me


So you've found a prime? Heres how to submit it to the top5000 database.

1. go to http://primes.utm.edu/bios/newprover.php
2. Put in your full name, username (last name) and an email address
3. Go to your biographical page when you get your email. (there should be a link once you get an email from the, but if its not, you can find it here http://primes.utm.edu/bios/page.php?id=xxx where xxx is your id number that they email you)
4. Click create a new proof code.
5. Under proof method select Jean Penne's LLR
6. In the box below where it says "none" erase that and type in "12121search, sr1sieve" without the quotes
7. Click submit.
8. Make sure all of the information is correct and then press to complete submission at the bottom
9. Click on your last name (or username) on the next page
10. At the bottom it will say "Submit primes using the code: ___" (click on the new code.)
11. In the box type in your prime (121*2^xxxxxxx-1)
12. Submit it, and you'll be all set