mersenneforum.org  

Go Back   mersenneforum.org > Search Forums

Showing results 1 to 25 of 41
Search took 0.01 seconds.
Search: Posts Made By: VBCurtis
Forum: Aliquot Sequences 2021-07-14, 04:47
Replies: 1,260
Views: 126,028
Posted By VBCurtis
Update: 13^70, 13^52, 13^68, 13^26. Each is...

Update:
13^70, 13^52, 13^68, 13^26. Each is now pink (13^70 already was, but I extended it to 150).

I've started on Base 800, but I'm not yet sure how far I'll go with it so maybe don't make the...
Forum: Aliquot Sequences 2021-07-05, 18:57
Replies: 1,260
Views: 126,028
Posted By VBCurtis
I'd like to handle base 800.

I'd like to handle base 800.
Forum: Aliquot Sequences 2021-06-09, 23:34
Replies: 1,260
Views: 126,028
Posted By VBCurtis
Please update 13^54 and 13^70. My quest to...

Please update 13^54 and 13^70.
My quest to pink-ify base 13 continues.
Forum: Aliquot Sequences 2021-05-26, 06:01
Replies: 1,260
Views: 126,028
Posted By VBCurtis
This. I haven't reserved a regular Aliquot...

This. I haven't reserved a regular Aliquot sequence since I began contributing to this project. :tu:
Forum: Aliquot Sequences 2021-05-21, 21:31
Replies: 1,260
Views: 126,028
Posted By VBCurtis
Sequences I've advanced to 140+ digits in the...

Sequences I've advanced to 140+ digits in the last two weeks:
13^78, 13^36, 13^76, 13^56, 13^72
Forum: Aliquot Sequences 2021-05-14, 14:41
Replies: 1,260
Views: 126,028
Posted By VBCurtis
13^32 and 13^78 can be updated. I'm on my...

13^32 and 13^78 can be updated.

I'm on my way to turning all of base 13 pink this spring.
Forum: Aliquot Sequences 2021-05-07, 20:56
Replies: 1,260
Views: 126,028
Posted By VBCurtis
I agree that "open end" does not need...

I agree that "open end" does not need subcategories.

Thank you for putting pink in; I'll now proceed to turn all the orange sequences in base 13 pink.

13^78 can be updated in this weekend's...
Forum: Aliquot Sequences 2021-05-01, 23:23
Replies: 1,260
Views: 126,028
Posted By VBCurtis
13^74 and 13^76 are updated. I got one of them...

13^74 and 13^76 are updated. I got one of them over 160 digits; you may unreserve that one, as I do not expect to extend it further.

13^78 caught the downdriver, so it's not yet to 120 digits...
Forum: Aliquot Sequences 2021-03-20, 22:51
Replies: 1,260
Views: 126,028
Posted By VBCurtis
13^64 up through 13^70 are now C120 or bigger and...

13^64 up through 13^70 are now C120 or bigger and can be updated.

I expect to get the rest of base 13 turned orange this week. Sorry for the delay!

Edit: please leave them reserved to me; I...
Forum: Aliquot Sequences 2021-03-16, 04:51
Replies: 1,260
Views: 126,028
Posted By VBCurtis
Factoring algorithms on general-form numbers such...

Factoring algorithms on general-form numbers such as these can be reasonably solved up to 180 digits or so, with 200 digits possible via concerted effort (and a few CPU-years of computation).

We...
Forum: Aliquot Sequences 2021-02-21, 16:29
Replies: 1,260
Views: 126,028
Posted By VBCurtis
When you're ready to do some work on that...

When you're ready to do some work on that sequence, make a thread for it in the same place as the 3366 and 4788 threads. Sean and I will surely help with ECM and other work- as you observe, most of...
Forum: Aliquot Sequences 2020-11-23, 23:34
Replies: 1,260
Views: 126,028
Posted By VBCurtis
Squaring the 31 is the manner in which one breaks...

Squaring the 31 is the manner in which one breaks 2^4 * 31.
Other powers of 2 would not be a driver; only the perfect number 496 = 2^4 * 31 is a driver.
I believe the same is true for the other...
Forum: Aliquot Sequences 2020-11-22, 18:18
Replies: 1,260
Views: 126,028
Posted By VBCurtis
That's not unusual, at all! I guess I just don't...

That's not unusual, at all! I guess I just don't encounter 2^4 * 31 often enough to pay attention. I appreciate the data!
Forum: Aliquot Sequences 2020-11-22, 16:59
Replies: 1,260
Views: 126,028
Posted By VBCurtis
13^64. It got down under 50 digits, but picked up...

13^64. It got down under 50 digits, but picked up 2 * 3 so it's back above 110 dig now.

13^58, 60, 62 can be updated on your page also.
Forum: Aliquot Sequences 2020-11-22, 05:22
Replies: 1,260
Views: 126,028
Posted By VBCurtis
How unusual is it to break 2^4 * 31? I don't...

How unusual is it to break 2^4 * 31? I don't think I've done it before tonight.

Edit: The sequence went 2^4 * 3 * 31 to 2^4 * 3 * 31^2 to 2^6 * 3 * 31, and picked up the downdriver a few terms...
Forum: Aliquot Sequences 2020-10-15, 22:54
Replies: 1,260
Views: 126,028
Posted By VBCurtis
The odd powers of 13 are finished up to 13^145. ...

The odd powers of 13 are finished up to 13^145.
I am now back to working on the even powers of 13 up to 78.

I added 700+ terms to 13^58.
Forum: Aliquot Sequences 2020-10-09, 18:23
Replies: 1,260
Views: 126,028
Posted By VBCurtis
I hand-tuned the CADO params files for speed-...

I hand-tuned the CADO params files for speed- they're posted in the CADO subforum https://mersenneforum.org/showthread.php?t=24274. Most of my files are 20-30% faster than the factory defaults, but...
Forum: Aliquot Sequences 2020-10-09, 16:23
Replies: 1,260
Views: 126,028
Posted By VBCurtis
Those cutoffs are nuts! maybe try timing a C102...

Those cutoffs are nuts! maybe try timing a C102 both ways to see if tune is accurate? Is gnfs via factmsieve.py?

For CADO vs siqs, my cutoff is 93 digits. CADO is over twice as fast as yafu by...
Forum: Aliquot Sequences 2020-09-19, 17:06
Replies: 1,260
Views: 126,028
Posted By VBCurtis
I lied- 13^141 and 13^143 are in progress, not...

I lied- 13^141 and 13^143 are in progress, not yet complete. Odd powers up to 13^139 are complete.
Forum: Aliquot Sequences 2020-09-15, 18:40
Replies: 1,260
Views: 126,028
Posted By VBCurtis
I am terminating all the newly-added odd powers...

I am terminating all the newly-added odd powers of 13; I'll have them all done by the weekend update.
Forum: Aliquot Sequences 2020-09-02, 03:16
Replies: 1,260
Views: 126,028
Posted By VBCurtis
That's what nfs@home is for. We merely need to...

That's what nfs@home is for. We merely need to ECM-pretest and solve the matrix, a total of at most 20% of the sieve time.

Edit: Of course, all that does is delay the onset of...
Forum: Aliquot Sequences 2020-08-31, 22:11
Replies: 1,260
Views: 126,028
Posted By VBCurtis
This is the original hypothesis of the...

This is the original hypothesis of the Aliquot-sequence project- that they all terminate, eventually. We keep cracking C190+ cofactors in hopes of breaking a driver and finding a new...
Forum: Aliquot Sequences 2020-08-25, 19:51
Replies: 1,260
Views: 126,028
Posted By VBCurtis
I've been working on base 13 for a few years, and...

I've been working on base 13 for a few years, and prefer to work only on base 13. Please skip that one!
Forum: Aliquot Sequences 2020-07-16, 02:42
Replies: 1,260
Views: 126,028
Posted By VBCurtis
Excellent! Be my guest. Also, I'd like to...

Excellent! Be my guest.

Also, I'd like to reserve 13^60 up to 13^78. I'll start them next week.
Forum: Aliquot Sequences 2020-07-14, 08:01
Replies: 1,260
Views: 126,028
Posted By VBCurtis
Well, I've been working in spurts on n=13 for a...

Well, I've been working in spurts on n=13 for a couple of years. I have reserved only up to 13^60, but I do plan to cover all of it and I've just 2 sequences left to begin in my reservation to...
Showing results 1 to 25 of 41

 
All times are UTC. The time now is 18:16.


Sun Aug 1 18:16:09 UTC 2021 up 9 days, 12:45, 0 users, load averages: 3.31, 3.12, 2.75

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.