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Old 2013-03-04, 21:20   #1233
MyDogBuster
 
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ototero found:

383*2^1091332-1
http://primes.utm.edu/primes/page.php?id=111322


371*2^1116274-1
http://primes.utm.edu/primes/page.php?id=111481

Last fiddled with by MyDogBuster on 2013-03-05 at 13:37
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Old 2013-03-07, 04:22   #1234
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http://primes.utm.edu/primes/page.php?id=111505

385*2^1126083-1 is prime
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Old 2013-03-07, 22:11   #1235
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355*2^1125573-1 is prime
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Old 2013-03-22, 09:42   #1236
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481*2^1182519-1 is prime
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Old 2013-03-25, 01:21   #1237
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http://primes.utm.edu/primes/page.php?id=111824

371*2^1180806-1 is prime
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Old 2013-04-01, 18:23   #1238
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313*2^1456431-1 is Prime

Lennart


Edit: Moved here from individual k thread

Nice one

Last fiddled with by MyDogBuster on 2013-04-01 at 19:12
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Old 2013-04-02, 20:28   #1239
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313*2^1703119-1 isPrime

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Old 2013-04-05, 08:16   #1240
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519*2^1190660-1 is prime
507*2^1192088-1 is prime
469*2^1200635-1 is prime
475*2^1204215-1 is prime
429*2^1205440-1 is prime

Last fiddled with by gd_barnes on 2013-04-24 at 07:47 Reason: add primes
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Old 2013-04-27, 16:50   #1241
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http://primes.utm.edu/primes/page.php?id=113976

395*2^1611672-1 is prime
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Old 2013-05-03, 03:27   #1242
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http://primes.utm.edu/primes/page.php?id=114040

375*2^1275345-1 is prime

http://primes.utm.edu/primes/page.php?id=114041

395*2^1690690-1 is prime

Last fiddled with by MyDogBuster on 2013-05-03 at 07:51
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Old 2013-05-11, 08:15   #1243
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563*2^1216134-1 is prime
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