mersenneforum.org Sierpinski/Riesel Base 5: Post Primes Here
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 2008-08-13, 06:03 #353 em99010pepe     Sep 2004 2×5×283 Posts 287626*5^277175-1 (193743 digits) is prime
 2008-08-13, 15:06 #354 masser     Jul 2003 wear a mask 2×7×103 Posts Dense k=287626 Good find! That prime will remove more than 1% of the remaining Riesel tests. Last fiddled with by masser on 2008-08-13 at 15:07
 2008-10-06, 14:27 #355 rogue     "Mark" Apr 2003 Between here and the 2×3×991 Posts It has been a while, but I finally knocked another one off. So far this is the biggest prime on the Sierpinski side. 71098*5^319336+1 is prime! (5864.2514s+0.0470s) I'll submit it to Prime Pages later today. BTW, why is the Prime Announcement thread closed? Last fiddled with by rogue on 2008-10-06 at 14:28
2008-10-06, 15:48   #356
masser

Jul 2003

2×7×103 Posts

Quote:
 Originally Posted by rogue It has been a while, but I finally knocked another one off. So far this is the biggest prime on the Sierpinski side. 71098*5^319336+1 is prime! (5864.2514s+0.0470s) I'll submit it to Prime Pages later today. BTW, why is the Prime Announcement thread closed?
Awesome!

Only moderators are allowed to post to the Prime Announcement thread. That thread was setup before I became a moderator - I just copy any prime announcement here to that thread; kind of redundant, I know.

 2008-11-26, 02:24 #357 robin_benson     Jul 2007 1316 Posts 99926*5^334793+1 is prime!
 2008-12-07, 19:15 #358 masser     Jul 2003 wear a mask 26428 Posts Prime Found Another Sierpinski prime has been found - Ralf Over, check your files please!
 2008-12-08, 16:28 #359 masser     Jul 2003 wear a mask 2×7×103 Posts rover's prime 139606*5^325722+1 http://primes.utm.edu/primes/page.php?id=85889 Last fiddled with by masser on 2008-12-08 at 16:29

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