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Old 2011-07-08, 09:51   #232
Lennart
 
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85287*2^1890011+1 is Prime.


That was a hard one

Lennart
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Old 2011-07-08, 20:53   #233
gd_barnes
 
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Quote:
Originally Posted by Lennart View Post
85287*2^1890011+1 is Prime.


That was a hard one

Lennart


Congrats on yet another huge prime! Once again, the big ones are coming in clumps. Now we just need a 3rd one to make it like a month ago.
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Old 2011-09-08, 15:11   #234
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139*666^178851-1 is prime! (504984 digits)

http://primes.utm.edu/primes/page.php?id=101882
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Old 2011-11-07, 17:21   #235
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907*366^124278-1
43902*31^251859-1
are prime!


Last fiddled with by Puzzle-Peter on 2011-11-07 at 17:22
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Old 2011-11-07, 18:54   #236
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Nice pair Peter!
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Old 2011-11-08, 15:26   #237
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1110*366^154149-1 is prime!
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Old 2011-11-08, 19:05   #238
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You are one lucky bustard. ;-)
Click image for larger version

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Congratulations!
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Old 2011-11-08, 19:51   #239
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Great run Peter! Do you have a search limit on the remaining k's?
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Old 2011-11-08, 20:19   #240
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I'm waiting for a few subranges to finish that are running on slower machines. It will probably take until next week, then I can report results for all k's up to n=150k.
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Old 2011-11-08, 21:05   #241
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That's what we like, primes in bunches. Congrats Willem and Peter.
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Old 2011-12-01, 02:14   #242
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S341 tested n=100K-200K

http://primes.utm.edu/primes/page.php?id=103427
10*341^106008+1 is prime

Conjecture proven - ck of 20
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