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Old 2009-09-04, 04:40   #540
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2975*2^478798-1 is prime

With this prime, that now makes 61 total primes for n=460K-480K for the 11th drive vs. 60 total primes for n=440K-460K. After a long n=1300 dormant stretch for n=476K-477.3K (new primes dormant for n=1800 from 475.6K-477.4K!), that now makes 10 primes in an n=1500 stretch from 477.3K-478.8K. A remarkable run of primes to give the higher 20K range more primes than the lower one.

The primes are doing their normal "strange" thing.

Last fiddled with by gd_barnes on 2009-09-04 at 04:50
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Old 2009-09-04, 19:17   #541
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The remarkable prime range for the 11th drive continues:

2581*2^479071-1 is prime
2335*2^479093-1 is prime


That now makes 12 primes in an n=1800 stretch from n=477.3K-479.1K.
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Old 2009-09-06, 13:56   #542
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2809*2^479577-1 is prime
2367*2^479716-1 is prime
2627*2^480090-1 is prime
2639*2^480472-1 is prime
2631*2^480741-1 is prime
2355*2^481236-1 is confirmed prime
2621*2^481458-1 is prime
2649*2^481543-1 is prime
2789*2^482292-1 is prime
2651*2^482714-1 is prime
2685*2^483182-1 is confirmed prime
2097*2^483489-1 is prime
2467*2^483805-1 is prime

Last fiddled with by gd_barnes on 2009-09-18 at 15:04 Reason: add primes
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Old 2009-09-19, 08:51   #543
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2919 ยท 2^483764-1 is prime.

http://primes.utm.edu/primes/page.php?id=90009

Last fiddled with by gd_barnes on 2009-09-19 at 15:04 Reason: remove 'confirmed'
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Old 2009-09-21, 07:21   #544
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2637*2^484561-1

http://primes.utm.edu/primes/page.php?id=90050

Two primes in Two days woot woot!!!!

You know what they say, " Hot girls and Primes roll in a pack."
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Old 2009-09-22, 05:06   #545
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2469*2^484913-1 is prime
2513*2^484932-1 is prime
2433*2^485340-1 is prime
2067*2^485376-1 is prime
2273*2^485460-1 is prime
2629*2^486137-1 is prime
2765*2^486800-1 is prime
2657*2^487110-1 is prime
2391*2^487665-1 is prime

Last fiddled with by gd_barnes on 2009-10-01 at 18:38 Reason: add primes
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Old 2009-10-02, 01:56   #546
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Two More Primes

2251 * 2^487617-1

http://primes.utm.edu/primes/page.php?id=90178

2439 * 2^487556-1

http://primes.utm.edu/primes/page.php?id=90174
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Old 2009-10-02, 19:48   #547
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2485*2^487899-1 is prime
2625*2^488208-1 is prime
2331*2^488834-1 is prime

Last fiddled with by gd_barnes on 2009-10-05 at 09:16 Reason: add primes
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Old 2009-10-05, 18:33   #548
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2975*2^488998-1

http://primes.utm.edu/primes/page.php?id=90232
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Old 2009-10-06, 11:51   #549
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2681*2^489782-1 is prime
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Old 2009-10-06, 13:08   #550
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2775*2^489194-1 is confirmed prime
2685*2^489306-1 is confirmed prime
2885*2^489376-1 (147321 digits) is new prime
2595*2^489851-1 is confirmed prime
2343*2^489900-1 (147478 digits) is new prime

Last fiddled with by vaughan on 2009-10-06 at 13:10
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