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Old 2009-01-22, 16:31   #45
gd_barnes
 
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1667*2^365342-1 is prime
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Old 2009-01-22, 17:23   #46
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1655*2^365228-1 is prime

1601*2^365302-1 is prime
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Old 2009-01-22, 17:55   #47
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1 out of the last 17 primes hasnt been 1600-1700
amazing:surprised
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Old 2009-01-22, 18:54   #48
Flatlander
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1587*2^365549-1
1603*2^364139-1
Confirmed primes.
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Old 2009-01-23, 00:18   #49
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1683*2^366866-1 is prime.
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Old 2009-01-23, 07:06   #50
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1941*2^365467-1 is prime
1637*2^368470-1 is prime
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Old 2009-01-23, 07:09   #51
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Brucifer found:

1635*2^366428-1 is confirmed prime

LaurenU2 found:

1463*2^368756-1 is confirmed prime
1561*2^369477-1 is confirmed prime
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Old 2009-01-23, 07:13   #52
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Quote:
Originally Posted by henryzz View Post
1 out of the last 17 primes hasnt been 1600-1700
amazing:surprised
Make that 1 out of the last 17 NEW primes hasn't been k=1600-1700.

Now it's: 18 out of the last 20 NEW primes HAS been k=1600-1700 and the other 2 have been k=1900-2000.

(I don't like negative logic. lol)

Somewhere in there are some k=1400-1600 & k=1700-1900 new primes I'm sure. Those areas are far from having been fully searched already, especially the k=1700-1900 range. We're slowly getting a higher percentage of new primes as we get higher. Above n=375K, the previously known primes drops dramatically. That's why I'm very excited by the prospects for the rally!


Gary
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Old 2009-01-23, 08:57   #53
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The streak of k=1600-1700 & 1900-2000 new primes will finally end and with a vengence!...

Flatlander, Laurenu2, and PCZ all have new primes!
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Old 2009-01-23, 10:15   #54
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1727*2^370942-1 is a confirmed prime
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Old 2009-01-23, 10:20   #55
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user=em99010pepe
[2009-01-23 00:24:42]
1527*2^366989-1 is prime! Time : 31033.0 sec. (confirmed)


user=PCZ
[2009-01-23 00:53:05]
1953*2^370639-1 is prime! Time : 1469.0 sec. (new)
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