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Old 2008-08-13, 06:03   #353
em99010pepe
 
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287626*5^277175-1 (193743 digits) is prime
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Old 2008-08-13, 15:06   #354
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Default 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
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Old 2008-10-06, 14:27   #355
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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
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Old 2008-10-06, 15:48   #356
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Quote:
Originally Posted by rogue View Post
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.
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Old 2008-11-26, 02:24   #357
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99926*5^334793+1 is prime!
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Old 2008-12-07, 19:15   #358
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Another Sierpinski prime has been found - Ralf Over, check your files please!
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Old 2008-12-08, 16:28   #359
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Default 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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