DOUBLE CHECK UNCOVERS 9TH PRIME!
(posted by louis helm)  Wednesday, 19 Oct 2005  

4847 * 2^3321063 + 1 is prime! This is great news as k=4847 was a relatively dense series that required more tests in a given range than the average k. The prime was discovered at 10:50PM EST on October 15th by Richard Hassler, a long-time user who has been crunching SB since August 2003.

You may notice that this prime is smaller than the last few discoveries we've made (only 999744 digits [decimal expansion]). That's because this prime was uncovered by a double check. Hopefully those of us disappointed by the artificial slowdown that double checks have caused recently are pleased that it resulted in a new discovery so quickly. We're working to correct the scoring system so that these tests are worth as much per amount of computation as larger ones. Until we do, keep in mind that although the scoring has temporarily decreased, the ease of finishing a test has gone up which does improve your chances of actually finding a prime.

Congratulations to the whole SB community! These primes are rare so take a moment to appreciate all the hard work that goes into producing them. Each SB participant helped do their part to increase the bounds of human knowledge with this discovery. Be proud of your accomplishment! 9 down -- 8 to go.

大意是说，现在进行的大规模复查行动发现了第9个质数4847 * 2^3321063 + 1

复查行动？不是用户发现的吗？

你现在算的指数不就是复查，即是second-pass啦~~~

[ Last edited by fwjmath on 2005-10-23 at 14:44 ]

新闻见于项目官方主页：http://www.seventeenorbust.com/news/
项目 17 个计算任务，现在已经减去了 9 个，只剩下 8 个了......

看来是一个新的~