All things doublecheck!!

masser · 2006-06-08, 01:07

78398*5^19313+1 is prime!
107258*5^19517+1 is prime!

rogue · 2006-06-08, 02:29

Quote:

Originally Posted by masser

78398*5^19313+1 is prime!
107258*5^19517+1 is prime!

Nice. I will be freeing up one of my resources this weekend, so I can devote some time to this project again. Sieving will have to wait, but at least I should be able to look for new primes.

Citrix · 2006-06-08, 03:06

Is there a way to reserve ranges in the double check effort? Is it open to the general public?

grobie · 2006-06-08, 22:11

If there is an interest in double checking, maybe another sticky should be started with all the K's that need to be checked so those who do it will be able to reserve k's. This would prevent confusion?

masser · 2006-06-09, 00:05

Double checking is currently an individual process. I started doing it as a test of srsieve and because I suspected that a few primes were missing in the 16384 < n < 32768 range. It's a nice chunk of work for some of my slower machines. I've currently checked all remaining Sierpinski's up to n = 22000, with plans to check up to n = 65536.

If anyone was interested, I would encourage them to sieve the Sierpinski k's for n > 65536, or perhaps start a double check effort for the Riesel k's.

masser · 2006-07-17, 17:13

111688*5^33840+1 is prime!

michaf · 2006-07-17, 18:54

Quote:

Originally Posted by masser

111688*5^33840+1 is prime!

I actually don't know if I like this one :>
IIRC this is the third or fourth prime found in double checking...

Should we start double checking everything, or have you taken that task upon you, Masser?

jasong · 2006-07-17, 20:06

Quote:

Originally Posted by michaf

I actually don't know if I like this one :>
IIRC this is the third or fourth prime found in double checking...

Should we start double checking everything, or have you taken that task upon you, Masser?

Maybe people need to start turning in their residuals. I think that's what they're called. I mean the unique string of characters that gets associated with every test.

axn · 2006-07-21, 17:09

278594*5^40528-1 is prime!

axn · 2006-07-24, 17:24

280292*5^41864-1 is prime!

axn · 2006-07-31, 18:09

234226*5^44705-1 is prime!

2006-06-08, 01:07	#1
masser Jul 2003 wear a mask 11000001110₂ Posts	look what double checking uncovered... 783985^19313+1 is prime! 1072585^19517+1 is prime!

2006-06-08, 22:11	#4
grobie Sep 2005 Raleigh, North Carolina 337 Posts	Double Checking If there is an interest in double checking, maybe another sticky should be started with all the K's that need to be checked so those who do it will be able to reserve k's. This would prevent confusion?

2006-07-21, 17:09	#9
axn Jun 2003 4856₁₀ Posts	2785945^40528-1 is prime! Last fiddled with by axn on 2006-07-21 at 17:09*

2006-07-31, 18:09	#11
axn Jun 2003 2³×607 Posts	Third doublecheck prime 234226*5^44705-1 is prime!

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2006-06-08, 03:06	#3
Citrix Jun 2003 1,579 Posts	Is there a way to reserve ranges in the double check effort? Is it open to the general public?

2006-06-09, 00:05	#5
masser Jul 2003 wear a mask 60E₁₆ Posts	Double checking is currently an individual process. I started doing it as a test of srsieve and because I suspected that a few primes were missing in the 16384 < n < 32768 range. It's a nice chunk of work for some of my slower machines. I've currently checked all remaining Sierpinski's up to n = 22000, with plans to check up to n = 65536. If anyone was interested, I would encourage them to sieve the Sierpinski k's for n > 65536, or perhaps start a double check effort for the Riesel k's.

2006-07-17, 17:13	#6
masser Jul 2003 wear a mask 3016₈ Posts	111688*5^33840+1 is prime!

2006-07-24, 17:24	#10
axn Jun 2003 4856₁₀ Posts	280292*5^41864-1 is prime!