[QUOTE=Puzzle-Peter;296528]1983*366^271591-1 is prime! (696222 digits)
This removed 47% of all candidates from the sieve file. R366 is now a 2ker.

[URL]http://primes.utm.edu/primes/page.php?id=106340[/URL][/QUOTE]

Nice! :smile: This is CRUS's 2nd largest prime behind Ian's S12 monstrosity.

[FONT=Verdana][SIZE=2]Just submitted another one: [FONT=&quot]126072*31[/FONT][FONT=&quot]^[/FONT][FONT=&quot]374323-1 (558257 digits)[/FONT]

[url]http://primes.utm.edu/primes/page.php?id=106529[/url][/SIZE][/FONT]

Congrats on another huge prime Peter! :smile:

S405
 

[URL]http://primes.utm.edu/primes/page.php?id=106781[/URL]

106*405^120952+1 is prime

Conjecture proven - ck= 146

Results emailed

Unconnected recently found 2 nice top-5000 primes:

25*800^124713-1 is prime
26*800^162819+1 is prime

The Riesel prime dropped R800 to 1 k remaining.
The Sierp prime dropped S800 to 2 k's remaining.

Congrats Dmitri! :smile:

[COLOR=red]10107*6^559967+1 is Prime


Lennart
[/COLOR]

[QUOTE=Lennart;318853][COLOR=red]10107*6^559967+1 is Prime[/COLOR]


[COLOR=red]Lennart[/COLOR]
[/QUOTE]

Nice find Lennart! ...on the lowest k remaining for S6. :smile:

11441*60^180105+1

[URL]http://primes.utm.edu/primes/page.php?id=110141[/URL]

32*26^318071+1 is prime

S26 now has 2k's left - continuing

Nice one Ian. It's always good to get a large prime on one of the lower bases.

S941
 

[URL]http://primes.utm.edu/primes/page.php?id=110142[/URL]

26*941^127533+1 is prime

ck=158

Conjecture proven:beer: