[FONT=Verdana]1667*2^365342-1 is prime
[/FONT]

1655*2^365228-1 is prime

1601*2^365302-1 is prime

1 out of the last 17 primes hasnt been 1600-1700
amazing:surprised

1587*2^365549-1
1603*2^364139-1
Confirmed primes.

[FONT=Verdana]1683*2^366866-1 is prime.
[/FONT]

1941*2^365467-1 is prime
1637*2^368470-1 is prime

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

[quote=henryzz;159863]1 out of the last 17 primes hasnt been 1600-1700
amazing:surprised[/quote]

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) :smile:

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

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! :smile:

1727*2^370942-1 is a confirmed prime

[FONT=Verdana]user=em99010pepe[/FONT]
[FONT=Verdana][2009-01-23 00:24:42][/FONT]
[FONT=Verdana]1527*2^366989-1 is prime! Time : 31033.0 sec. (confirmed)[/FONT]


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