61 curves using B1=43e6 & B2=178426462988...

How many more do we need?

[QUOTE=Xyzzy]61 curves using B1=43e6 & B2=178426462988...

How many more do we need?[/QUOTE]
:redface:
We needed 600 more, your 61 curves count as 129.32 curves, so we need 471 more.

Thomas

:coffee:

Who wants to team up with me for the 55 digit range?

I'm willing to run the stage 2 part since I have enough memory...

[QUOTE=Xyzzy]Who wants to team up with me for the 55 digit range?

I'm willing to run the stage 2 part since I have enough memory...[/QUOTE]

Allow me to repeat an opinion I have expressed before. And add some comments.

I do not understand why people become fixated on some one particular number. We have made a good effort on M1061, let's move on.

Given that no factor was found, extending the effort by another 5 digits
is *unlikely* to succeed.

Meanwhile there are MANY numbers that have not even been tested to the
45 digit level, for both 2^n-1 and 2^n+1. Let's put some effort into these,
rather than being *fixated* on just one number.

Just my opinion. You are, of course, free to use your computer(s) in any
way you please. :smile:

[QUOTE=R.D. Silverman]Meanwhile there are MANY numbers that have not even been tested to the
45 digit level, for both 2^n-1 and 2^n+1. Let's put some effort into these,
rather than being *fixated* on just one number.[/QUOTE]Start a thread for each number you want worked on and I'll gladly contribute...

For me half the fun is chatting with the people I'm working with... If I had to run these by myself it wouldn't be nearly as rewarding...

What I like about this thread is I have learned a lot about how this stuff works... Make a thread that is similar and I bet people will jump all over it...

What I think people want:

1) Interesting discussion...
2) Some way to tally up results and report them...
3) Semi-regular updates...

Anyways, I've tried to start a few other threads for other numbers but they haven't yet taken off... I bet if you had something that was easier to work and had a chance of success you would get people on board easily...

I barely understand what we are doing and M1061 doesn't mean very much to me... All I want to do is contribute something, hang out with friends, and possibly find something...

:bounce:

[QUOTE=R.D. Silverman]Allow me to repeat an opinion I have expressed before. And add some comments.

I do not understand why people become fixated on some one particular number. We have made a good effort on M1061, let's move on.[/QUOTE]I do not necessarily understand either, but I can make a shrewd guess.

Some people like the challenge of finding something that hasn't been found before. No one has yet found a factor of M1061. Many factors of other entries in the 2+ and 2- tables have already been found, even though not all such factors have been --- as you point out.

It's an emotional thing. Some people don't get as much enjoyment from finding yet another factor of a number which has already been factored than they do from finding the first known factor. I'm sure Freud would have had something to say about it, probably connected with virginity. :whistle:

In much the same way, IMO, people tend to like going for first holes or champions, more than they like running GNFS to clear out detritus left by earlier ECM runs. Can you honestly say, hand on heart, that you haven't passed up easy GNFS targets, some down at the c110 or c120 level, in favour of much harder SNFS factorizations?

It takes all sorts and, presumably, the ECM work will have to be done at some time or other. May as well do it now as later, is one way of looking at it. In the meantime, those who are doing it are not stopping others from working on other entries in the tables and, in particular, are not depriving those others of the low-hanging fruit --- in fact, by removing themselves from the team of searchers, they are increasing the likelihood of someone else finding those other factors.

Paul

Or, in my case, I don't know how to set up the program to search for anything else... I don't even understand what numbers to choose...

Make it "easier" and I'm there... Educate me in the process, and I'm really there...

:flex:

[QUOTE=xilman]I do not necessarily understand either, but I can make a shrewd guess.

Some people like the challenge of finding something that hasn't been found before. No one has yet found a factor of M1061. Many factors of other entries in the 2+ and 2- tables have already been found, even though not all such factors have been --- as you point out.


In much the same way, IMO, people tend to like going for first holes or champions, more than they like running GNFS to clear out detritus left by earlier ECM runs. Can you honestly say, hand on heart, that you haven't passed up easy GNFS targets, some down at the c110 or c120 level, in favour of much harder SNFS factorizations?

Paul[/QUOTE]

Actually, I don't pass up easy numbers in the hope of establishing a record.
I don't do GNFS simply because I have not implemented code to select a
good polynomial.

There are quite a few other 2^n-1 and 2^n+1 whose primitive parts
(i.e. what is left after algebraic factors are removed) have no known factors.
815-, 841-, 1037-, 1115-, 1127-, 1165-, 1197-, 923+, 925+, 1019+, 1068+,1085+, 1123+, 1157+ are all "virgin". 2,1402L C211 is a nice target....
etc.

I have completed 300 curves at B1=11e7, B2=52e9/polynomial-12 (multiplier 0.61)

I think the point of a group effort is to take on something that no one would want to tacke on their own. I am still putting 90% of my effort in to other things, mostly ECM on the 2+ and 2LM tables doing curves at 40 and 45 digits, but it is fun to work on something more speculative as well.

[Mon Dec 20 03:53:09 2004]
M1061 completed 200 ECM curves, B1=44000000, B2=4290000000

271 curves left.

Thomas
:coffee:

[QUOTE=R.D. Silverman]There are quite a few other 2^n-1 and 2^n+1 whose primitive parts
(i.e. what is left after algebraic factors are removed) have no known factors.
815-, 841-, 1037-, 1115-, 1127-, 1165-, 1197-, 923+, 925+, 1019+, 1068+,1085+, 1123+, 1157+ are all "virgin". 2,1402L C211 is a nice target....
etc.[/QUOTE]Can someone explain how to set these up to work on?