Report top-5000 primes for all k<=1001 - Page 17

gd_barnes · 2008-08-02, 10:58

A prime a day keeps the ills away...

789*2^513943-1 is prime

gd_barnes · 2008-08-03, 12:31

471*2^514399-1 is prime

em99010pepe · 2008-08-03, 15:33

305*2^662808-1 is prime

Mini-Geek · 2008-08-04, 11:11

901*2^530103-1 is prime!

Finally! It's been nearly two months since my last prime, and I "should" find a prime about every month at this size. This was the largest gap (in both time and n/digits) between primes I've had.

July was my first month since I started NPLB that I didn't get a prime. With 159580 digits, this is my first prime that will be placed on the short list once verification is finished.

gd_barnes · 2008-08-04, 11:21

Quote:

Originally Posted by Mini-Geek

901*2^530103-1 is prime!

Finally! It's been nearly two months since my last prime, and I "should" find a prime about every month at this size. This was the largest gap (in both time and n/digits) between primes I've had.

July was my first month since I started NPLB that I didn't get a prime. With 159580 digits, this is my first prime that will be placed on the short list once verification is finished.

Congrats! That's a biggie right after the fftlen change! So, what does this "short list" mean anyway? What causes a prime to be on the short list? Is there some LONG list that the rest of the primes are on? (lol)

Gary

Mini-Geek · 2008-08-04, 11:33

Quote:

Originally Posted by gd_barnes

Congrats! That's a biggie right after the fftlen change! So, what does this "short list" mean anyway? What causes a prime to be on the short list? Is there some LONG list that the rest of the primes are on? (lol)

Gary

The "short" list is every prime over 150,000 digits, plus smaller primes that are of special, interesting forms, while the normal list is the top 5,000 primes, plus smaller primes that are of special, interesting forms. With current primes, that means it's the top 1543 primes, plus special ones.
http://primes.utm.edu/primes/download.php
By the way, verification has finished, and it is number 1281 and on the short list. This is my tenth prime.

mdettweiler · 2008-08-04, 21:02

755*2^514952-1 is prime!

(From AES300 LLRnet server, in its highly profitable range of 510.5K-516K.)

gd_barnes · 2008-08-07, 11:27

561*2^515702-1 is prime

glennpat · 2008-08-07, 21:48

945*2^515762-1 is prime

em99010pepe · 2008-08-07, 22:15

573*2^515815-1 Helix

gd_barnes · 2008-08-07, 23:24

10 primes in an n=5500 range for n>510K. AMAZING!! What a range!

2008-08-04, 11:11	#180
Mini-Geek Account Deleted "Tim Sorbera" Aug 2006 San Antonio, TX USA 17×251 Posts	9012^530103-1 is prime! Finally! It's been nearly two months since my last prime, and I "should" find a prime about every month at this size. This was the largest gap (in both time and n/digits) between primes I've had. July was my first month since I started NPLB that I didn't get a prime. With 159580 digits, this is my first prime that will be placed on the short list once verification is finished. Last fiddled with by Mini-Geek on 2008-08-04 at 11:14*

2008-08-04, 21:02	#183
mdettweiler A Sunny Moo Aug 2007 USA (GMT-5) 3×2,083 Posts	7552^514952-1 is prime! (From AES300 LLRnet server, in its highly profitable range of 510.5K-516K.) Last fiddled with by mdettweiler on 2008-08-04 at 21:03*

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2008-08-02, 10:58	#177
gd_barnes May 2007 Kansas; USA 3³·5·7·11 Posts	A prime a day keeps the ills away... 789*2^513943-1 is prime

2008-08-03, 12:31	#178
gd_barnes May 2007 Kansas; USA 3³·5·7·11 Posts	471*2^514399-1 is prime

2008-08-03, 15:33	#179
em99010pepe Sep 2004 2×5×283 Posts	305*2^662808-1 is prime

2008-08-07, 11:27	#184
gd_barnes May 2007 Kansas; USA 10395₁₀ Posts	561*2^515702-1 is prime

2008-08-07, 21:48	#185
glennpat May 2007 Minnesota USA 7² Posts	945*2^515762-1 is prime

2008-08-07, 22:15	#186
em99010pepe Sep 2004 2·5·283 Posts	573*2^515815-1 Helix

2008-08-07, 23:24	#187
gd_barnes May 2007 Kansas; USA 3³·5·7·11 Posts	10 primes in an n=5500 range for n>510K. AMAZING!! What a range!