POST LOTS AND LOTS AND LOTS OF PRIMES HERE - Page 20

lsoule · 2006-02-27, 02:22

14549535*2^290565-1 (87476 digits)

Kosmaj · 2006-02-27, 07:15

From the 1st RPS Drive:

663301485*2^310281-1 (93413 digits)

Kosmaj · 2006-02-28, 03:42

This just appeared

73*2^499391-1 (150334 digits)

I was afraid I have to go to much higher n to find the next k=73 prime after confirming the one at n=212451. k=73 is now continuously checked to n=462k and with gaps to 500k. Will continue to mid-500.

grobie · 2006-02-28, 22:42

Wow!! This was nice to come home to.

1222853775*2^312214-1 (93995 digits)
1222853775*2^313205-1 (94294 digits)
1222853775*2^313265-1 (94312 digits)
1222853775*2^313377-1 (94345 digits)
1222853775*2^313470-1 (94373 digits)

Edit: Only the first one was really prime, the others were composites.
The related discussion has been moved to a new thread called Four False Primes.

Cruelty · 2006-03-01, 13:44

Are we missing some posts from yesterday and today?
Nevermind: I should RTFM before posting...

lsoule · 2006-03-01, 18:21

2022381375*2^315661-1 (95033 digits)

the 8th top-5000 prime for this k from the RPS drive

Thomas11 · 2006-03-02, 20:30

151*2^413933-1 (124609 digits)

This is the third prime for k=151 (for n>210000, of course).

Flatlander · 2006-03-02, 21:30

Quote:

Originally Posted by Thomas11

151*2^413933-1 (124609 digits)

This is the third prime for k=151 (for n>210000, of course).

Oops.

http://primes.utm.edu/primes/page.php?id=77202

lsoule · 2006-03-02, 22:33

uh-oh, another mystery composite?

segmtfault · 2006-03-03, 01:47

I just retested the number with the following two boxes:
- P4 3GHz, WinXP, LLR 3.6
- P4 3GHz, Linux, LLR 3.6.2

and got the exact same result as the Top5000 List
( LLR Res64: 8440059416AD03E7 )

grobie · 2006-03-03, 02:19

139*2^382441-1 (115129 digits)

My 1st 100k+ prime

2006-02-28, 03:42	#212
Kosmaj Nov 2003 111000100110₂ Posts	This just appeared *732^499391-1** (150334 digits) I was afraid I have to go to much higher n to find the next k=73 prime after confirming the one at n=212451. k=73 is now continuously checked to n=462k and with gaps to 500k. Will continue to mid-500. Last fiddled with by Kosmaj on 2006-02-28 at 03:42

2006-02-28, 22:42	#213
grobie Sep 2005 Raleigh, North Carolina 337 Posts	k=1222853775 Wow!! This was nice to come home to. 12228537752^312214-1 (93995 digits) 12228537752^313205-1 (94294 digits) 12228537752^313265-1 (94312 digits) 12228537752^313377-1 (94345 digits) 12228537752^313470-1 (94373 digits) Edit: Only the first one was really prime, the others were composites. The related discussion has been moved to a new thread called Four False Primes. Last fiddled with by Kosmaj on 2006-03-01 at 12:26*

2006-03-01, 13:44	#214
Cruelty May 2005 2³·7·29 Posts	Are we missing some posts from yesterday and today? Nevermind: I should RTFM before posting... Last fiddled with by Cruelty on 2006-03-01 at 13:46

2006-03-03, 02:19	#220
grobie Sep 2005 Raleigh, North Carolina 337 Posts	k=139 139*2^382441-1 (115129 digits) My 1st 100k+ prime

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2006-02-27, 02:22	#210
lsoule Nov 2004 California 2³·3·71 Posts	14549535*2^290565-1 (87476 digits)

2006-02-27, 07:15	#211
Kosmaj Nov 2003 2·1,811 Posts	From the 1st RPS Drive: 663301485*2^310281-1 (93413 digits)

2006-03-01, 18:21	#215
lsoule Nov 2004 California 11010101000₂ Posts	2022381375*2^315661-1 (95033 digits) the 8th top-5000 prime for this k from the RPS drive

2006-03-02, 20:30	#216
Thomas11 Feb 2003 2²×3²×53 Posts	151*2^413933-1 (124609 digits) This is the third prime for k=151 (for n>210000, of course).

2006-03-02, 22:33	#218
lsoule Nov 2004 California 2³×3×71 Posts	uh-oh, another mystery composite?

2006-03-03, 01:47	#219
segmtfault Jun 2004 California 277 Posts	I just retested the number with the following two boxes: - P4 3GHz, WinXP, LLR 3.6 - P4 3GHz, Linux, LLR 3.6.2 and got the exact same result as the Top5000 List ( LLR Res64: 8440059416AD03E7 )