17*2^n-1 - Page 45

Kosmaj · 2009-02-01, 23:56

1926-1928 complete, no primes.

amphoria · 2009-02-04, 18:06

1934-1936 complete, no primes.

Taking 1938-1940.

amphoria · 2009-02-06, 17:23

1936-1938 complete, no primes.

amphoria · 2009-02-09, 17:20

1938to1940 complete, no primes.

Taking 1940-1942.

Dougal · 2009-02-09, 21:47

1928-1930 complete,no primes

Retep · 2009-02-10, 18:13

1908-1920 complete, no primes.

Taking 1942-1954.

amphoria · 2009-02-14, 07:23

1940-1942 complete, no primes.

Taking 1954-1956.

amphoria · 2009-02-19, 17:03

1954-1956 complete, no primes.

Taking 1956-1962.

amphoria · 2009-02-20, 16:56

Taking 1962-1968.

Kosmaj · 2009-02-22, 00:58

The project of testing k=17 in the n=205k-2M range started in May 2006, and now, after 2 years and 10 months we are about to complete testing all candidates. Only one new prime was found at n=605k (by segmtfault in September 2006).

We are continuing above n=2M using files sieved to 100T kindly provided by amphoria, who is still sievieng n>2.1M. If you want to find a large prime, join us now! Test files are available from post #1. (Larger test files are available on requst.)

Happy hunting!

Retep · 2009-03-05, 14:23

1942-1954 complete, no primes.

Taking 2052-2064.

2009-02-01, 23:56	#485
Kosmaj Nov 2003 2×1,811 Posts	1926-1928 complete, no primes.

2009-02-04, 18:06	#486
amphoria "Dave" Sep 2005 UK 2³·347 Posts	1934-1936 complete, no primes. Taking 1938-1940.

2009-02-06, 17:23	#487
amphoria "Dave" Sep 2005 UK 2³×347 Posts	1936-1938 complete, no primes.

2009-02-09, 17:20	#488
amphoria "Dave" Sep 2005 UK 2³×347 Posts	1938to1940 complete, no primes. Taking 1940-1942.

2009-02-09, 21:47	#489
Dougal Jan 2009 Ireland 186₁₀ Posts	1928-1930 complete,no primes

2009-02-10, 18:13	#490
Retep Oct 2007 3²×11 Posts	1908-1920 complete, no primes. Taking 1942-1954.

2009-02-14, 07:23	#491
amphoria "Dave" Sep 2005 UK 2³×347 Posts	1940-1942 complete, no primes. Taking 1954-1956.

2009-02-19, 17:03	#492
amphoria "Dave" Sep 2005 UK 2³×347 Posts	1954-1956 complete, no primes. Taking 1956-1962.

2009-02-20, 16:56	#493
amphoria "Dave" Sep 2005 UK 2776₁₀ Posts	Taking 1962-1968.

2009-02-22, 00:58	#494
Kosmaj Nov 2003 2×1,811 Posts	The project of testing k=17 in the n=205k-2M range started in May 2006, and now, after 2 years and 10 months we are about to complete testing all candidates. Only one new prime was found at n=605k (by segmtfault in September 2006). We are continuing above n=2M using files sieved to 100T kindly provided by amphoria, who is still sievieng n>2.1M. If you want to find a large prime, join us now! Test files are available from post #1. (Larger test files are available on requst.) Happy hunting!

2009-03-05, 14:23	#495
Retep Oct 2007 3²·11 Posts	1942-1954 complete, no primes. Taking 2052-2064.