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-   Sierpinski/Riesel Base 5 (https://www.mersenneforum.org/forumdisplay.php?f=54)
-   -   Sierpinski/Riesel Base 5: Post Primes Here (https://www.mersenneforum.org/showthread.php?t=3125)

em99010pepe 2008-08-13 06:03

287626*5^277175-1 (193743 digits) is prime

masser 2008-08-13 15:06

Dense k=287626
 
Good find! That prime will remove more than 1% of the remaining Riesel tests.

rogue 2008-10-06 14:27

It has been a while, but I finally knocked another one off. So far this is the biggest prime on the Sierpinski side.

71098*5^319336+1 is prime! (5864.2514s+0.0470s)

I'll submit it to Prime Pages later today.

BTW, why is the Prime Announcement thread closed?

masser 2008-10-06 15:48

[QUOTE=rogue;144635]It has been a while, but I finally knocked another one off. So far this is the biggest prime on the Sierpinski side.

71098*5^319336+1 is prime! (5864.2514s+0.0470s)

I'll submit it to Prime Pages later today.

BTW, why is the Prime Announcement thread closed?[/QUOTE]

Awesome!

Only moderators are allowed to post to the Prime Announcement thread. That thread was setup before I became a moderator - I just copy any prime announcement here to that thread; kind of redundant, I know.

robin_benson 2008-11-26 02:24

99926*5^334793+1 is prime!

masser 2008-12-07 19:15

Prime Found
 
Another Sierpinski prime has been found - Ralf Over, check your files please!

masser 2008-12-08 16:28

rover's prime
 
139606*5^325722+1

[url]http://primes.utm.edu/primes/page.php?id=85889[/url]


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