mersenneforum.org  

Go Back   mersenneforum.org > Fun Stuff > Lounge

Reply
 
Thread Tools
Old 2010-12-18, 23:06   #1
joblack
 
joblack's Avatar
 
Oct 2008
n00bville

72510 Posts
Default Isn't a new M. prime overdue?

It's a long time ago since a new Mersenne prime was found.

I'm getting a little bit 'jumpy' ... where are all the new Mersenne primes gone ;)?

Last fiddled with by joblack on 2010-12-18 at 23:07
joblack is offline   Reply With Quote
Old 2010-12-18, 23:22   #2
retina
Undefined
 
retina's Avatar
 
"The unspeakable one"
Jun 2006
My evil lair

37·157 Posts
Default

Quote:
Originally Posted by joblack View Post
It's a long time ago since a new Mersenne prime was found.

I'm getting a little bit 'jumpy' ... where are all the new Mersenne primes gone ;)?
Yeah, indeed. Umm ... we should complain to George and ask why he doesn't fix Prime95 so that it generates new M. primes on a regular basis. All the random timing and unknown stuff is just too much uncertainty for this new brave modern world of Google and the Internets answering all of our questions. Yeah, George, just fix it already, and don't be so cagey. I suggest that George fix P95 so that it generates a new M. prime every 12 minutes. That way people can check the computer screen in between TV ads and see something new each time. Otherwise how can we possibly hold our attention spans for longer than that?

I ran P95 for an entire 15 minutes and saw no result. Boring. What's on the telly dear? Any new trivia game shows yet? What happened to Casey in that new soap opera? Did she decide to get the operation or not?

Last fiddled with by retina on 2010-12-18 at 23:23
retina is online now   Reply With Quote
Old 2010-12-18, 23:29   #3
davar55
 
davar55's Avatar
 
May 2004
New York City

419810 Posts
Default

Wouldn't George have to take a vacation first?
Not a bad idea ...
But which M.prime will it be, do you think?
davar55 is offline   Reply With Quote
Old 2010-12-18, 23:53   #4
Uncwilly
6809 > 6502
 
Uncwilly's Avatar
 
"""""""""""""""""""
Aug 2003
101×103 Posts

873110 Posts
Default

Quote:
Originally Posted by joblack View Post
It's a long time ago since a new Mersenne prime was found.

I'm getting a little bit 'jumpy' ... where are all the new Mersenne primes gone ;)?
http://www.mersenneforum.org/showthread.php?p=234155

You said 60.5 That is still a ways off.
Uncwilly is online now   Reply With Quote
Old 2010-12-19, 00:07   #5
ATH
Einyen
 
ATH's Avatar
 
Dec 2003
Denmark

1011100101112 Posts
Default

http://www.mersenneforum.org/showpos...1&postcount=68

It is now (Dec 19th 2010) 616 days since last prime, so this is still the 4th largest prime gap (behind 897,733 and 719 days). But we are +63% above the average gap, so lets find one soon, these large gaps are EVIL!
ATH is offline   Reply With Quote
Old 2010-12-19, 01:09   #6
davar55
 
davar55's Avatar
 
May 2004
New York City

2×2,099 Posts
Default

Maybe we'll be celebrating the New Year with a New Mersenne Prime.
davar55 is offline   Reply With Quote
Old 2010-12-19, 05:07   #7
joblack
 
joblack's Avatar
 
Oct 2008
n00bville

52·29 Posts
Default

Quote:
Originally Posted by Uncwilly View Post
http://www.mersenneforum.org/showthread.php?p=234155

You said 60.5 That is still a ways off.
Not really -> I'm checking out that number range ;).
joblack is offline   Reply With Quote
Old 2010-12-19, 12:48   #8
science_man_88
 
science_man_88's Avatar
 
"Forget I exist"
Jul 2009
Dumbassville

8,369 Posts
Default

I have an idea of what to do but I haven't implemented it in Pari so far. might try, if you think it's worth it could there be a pattern in the step count to produce the digit root ? 8191->19->10->1 = 3 additions
science_man_88 is offline   Reply With Quote
Old 2010-12-19, 14:26   #9
davieddy
 
davieddy's Avatar
 
"Lucan"
Dec 2006
England

6,451 Posts
Default Ganbler's Fallacy

Quote:
Originally Posted by joblack View Post
It's a long time ago since a new Mersenne prime was found.

I'm getting a little bit 'jumpy' ... where are all the new Mersenne primes gone ;)?
To rewrite Caldwell's "Where is the next Mersenne Prime"
in the light of GIMPS progress, there are some things we can say
about this with some confidence:

1) IF one is found in 2011, it is very likely to have an exponent
between 42M and 55M.

2) The probabilty of such an event is about
60,000/400,000 or 15%.

David

Last fiddled with by davieddy on 2010-12-19 at 14:41
davieddy is offline   Reply With Quote
Old 2010-12-19, 14:55   #10
science_man_88
 
science_man_88's Avatar
 
"Forget I exist"
Jul 2009
Dumbassville

8,369 Posts
Default

Quote:
Originally Posted by science_man_88 View Post
I have an idea of what to do but I haven't implemented it in Pari so far. might try, if you think it's worth it could there be a pattern in the step count to produce the digit root ? 8191->19->10->1 = 3 additions
looks like all Mersenne numbers (2^x-1, x not necessarily prime)>2^3-1 get to their digital root in a Mersenne number (2^x-1, x not necessarily prime) amount of additions.
science_man_88 is offline   Reply With Quote
Old 2010-12-19, 15:31   #11
davieddy
 
davieddy's Avatar
 
"Lucan"
Dec 2006
England

6,451 Posts
Default

Quote:
Originally Posted by science_man_88 View Post
I have an idea of what to do but I haven't implemented it in Pari so far. might try, if you think it's worth it could there be a pattern in the step count to produce the digit root ? 8191->19->10->1 = 3 additions
Quote:
Originally Posted by science_man_88 View Post
looks like all Mersenne numbers (2^x-1, x not necessarily prime)>2^3-1 get to their digital root in a Mersenne number (2^x-1, x not necessarily prime) amount of additions.
Could someone either explain a connection (no matter how tenuous)
between these posts and this thread? If not could they be moved please?

David

OMG I'm morphing into 10metreh
davieddy is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
NEW MERSENNE PRIME! LARGEST PRIME NUMBER DISCOVERED! dabaichi News 561 2013-03-29 16:55
disk died, prime work lost forever? where to put prime? on SSD or HDD? emily PrimeNet 3 2013-03-01 05:49
Overdue Prime Rally masser Sierpinski/Riesel Base 5 49 2008-08-24 20:19
"Assignment Overdue" in Individual Account Report? EQG Software 2 2007-02-07 10:57
Server Overdue/Expire Complex33 PrimeNet 4 2004-03-09 14:11

All times are UTC. The time now is 10:51.

Sun Oct 25 10:51:05 UTC 2020 up 45 days, 8:02, 0 users, load averages: 1.44, 1.53, 1.52

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.