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Old 2013-05-22, 04:32   #1244
MyDogBuster
 
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http://primes.utm.edu/primes/page.php?id=114204

357*2^1301704-1 is prime
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Old 2013-05-22, 18:26   #1245
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http://primes.utm.edu/primes/page.php?id=114212

379*2^1302991-1 is prime
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Old 2013-05-24, 02:57   #1246
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http://primes.utm.edu/primes/page.php?id=114235

319*2^1344059-1 is prime
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Old 2013-05-25, 10:14   #1247
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573*2^1226854-1 is prime
593*2^1227476-1 is prime
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Old 2013-05-28, 18:53   #1248
henryzz
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513*2^1229391-1 is Prime
My first in a while and as a consequence my largest.
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Old 2013-05-31, 17:31   #1249
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569*2^1232424-1 is prime
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Old 2013-06-01, 09:43   #1250
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375*2^1319127-1 is prime
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Old 2013-06-03, 08:08   #1251
gd_barnes
 
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595*2^1234025-1 is prime
425*2^1240016-1 is prime

Last fiddled with by gd_barnes on 2013-06-13 at 18:44 Reason: add prime
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Old 2013-06-14, 02:14   #1252
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http://primes.utm.edu/primes/page.php?id=114400

319*2^1740047-1 is prime
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Old 2013-06-16, 07:27   #1253
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423*2^1243214-1 is prime
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Old 2013-06-16, 08:34   #1254
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Nice one -- written with just ones, twos, threes and fours. ;-)
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