[FONT=Verdana]1667*2^3653421 is prime
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1655*2^3652281 is prime
1601*2^3653021 is prime 
1 out of the last 17 primes hasnt been 16001700
amazing:surprised 
1587*2^3655491
1603*2^3641391 Confirmed primes. 
[FONT=Verdana]1683*2^3668661 is prime.
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1941*2^3654671 is prime
1637*2^3684701 is prime 
Brucifer found:
1635*2^3664281 is confirmed prime LaurenU2 found: 1463*2^3687561 is confirmed prime 1561*2^3694771 is confirmed prime 
[quote=henryzz;159863]1 out of the last 17 primes hasnt been 16001700
amazing:surprised[/quote] Make that 1 out of the last 17 NEW primes hasn't been k=16001700. Now it's: 18 out of the last 20 NEW primes HAS been k=16001700 and the other 2 have been k=19002000. (I don't like negative logic. lol) :smile: Somewhere in there are some k=14001600 & k=17001900 new primes I'm sure. Those areas are far from having been fully searched already, especially the k=17001900 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 
The streak of k=16001700 & 19002000 new primes will finally end and with a vengence!...
Flatlander, Laurenu2, and PCZ all have new primes! :smile: 
1727*2^3709421 is a confirmed prime

[FONT=Verdana]user=em99010pepe[/FONT]
[FONT=Verdana][20090123 00:24:42][/FONT] [FONT=Verdana]1527*2^3669891 is prime! Time : 31033.0 sec. (confirmed)[/FONT] [FONT=Verdana]user=PCZ[/FONT] [FONT=Verdana][20090123 00:53:05][/FONT] [FONT=Verdana]1953*2^3706391 is prime! Time : 1469.0 sec. (new)[/FONT] 
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