mersenneforum.org  

Go Back   mersenneforum.org > Factoring Projects > Lone Mersenne Hunters

Reply
 
Thread Tools
Old 2007-05-11, 10:15   #1
tmorrow
 
tmorrow's Avatar
 
Jan 2004

103 Posts
Default 43.5 - 44.0 to 2^63

I'd like to bag this range to 2^63.

There 12146 exponents in this range based on the nofactor.zip file in the Mersenne database dated April 23, 2007 (the latest).

According to the "All Available Ranges" sticky, this range is available. These exponents are all already TF'ed up to 2^62.

Please let me know someone has already claimed this range so I can select another.

My progress will not be greased lightning, roughly the speed of half a P4 3GHz machine. I'm getting through them at a rate of about 44 minutes per exponent, that's roughly 33 exponents per day or 11945 exponents per year so I'm expecting just over a year to complete. I hope this rate is not too slow.

I will report back to this thread weekly and to George Woltman every month or so until the batch is completed.

Last fiddled with by tmorrow on 2007-05-11 at 10:32
tmorrow is offline   Reply With Quote
Old 2007-05-11, 14:44   #2
1997rj7
 
1997rj7's Avatar
 
Sep 2003

15D16 Posts
Default

That range will be overtaken by Primenet in less than a year, likely in no more than 100 days.

You should probably pick a new range above 50M, where Primenet won't be for a good while. As an added bonus, you will be able to do more exponents per day.
1997rj7 is offline   Reply With Quote
Old 2007-05-11, 22:41   #3
tmorrow
 
tmorrow's Avatar
 
Jan 2004

6716 Posts
Default

Eek! I didn't realise PrimeNet would be handing these exponents out so soon. I should have known better, I'm factoring 42015793 right now as a PrimeNet assignment.

I'll stop this range after the current exponent is finished - it's only been going for 12 hours and has completed 17+ exponents with no factors yet found. I'm not sure whether it's worth reporting such a small chunk of work to George or not.
tmorrow is offline   Reply With Quote
Old 2007-05-11, 23:36   #4
tmorrow
 
tmorrow's Avatar
 
Jan 2004

103 Posts
Default

Work stopped now. Only 18 exponents completed. Results emailed to George.
tmorrow is offline   Reply With Quote
Reply

Thread Tools


All times are UTC. The time now is 18:26.

Sat May 15 18:26:09 UTC 2021 up 37 days, 13:07, 0 users, load averages: 1.77, 2.12, 2.16

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, 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.