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Forum: Factoring 2021-04-15, 22:27
Replies: 6
Views: 221
Posted By VBCurtis
If you don't already know they're semi-prime, you...

If you don't already know they're semi-prime, you should use the default/usual ECM depth.
I don't know how you would know ahead of time how many factors each input would have- "looking for...
Forum: Factoring 2021-04-15, 19:17
Replies: 6
Views: 221
Posted By VBCurtis
Our guidelines are based on getting factors in...

Our guidelines are based on getting factors in the shortest amount of time.
If you already know your inputs are semi-prime, then our guidelines for ECM are perhaps a bit too high; our ECM guidance...
Forum: PrimeNet 2021-04-15, 16:36
Replies: 2
Views: 86
Posted By VBCurtis
Consider the number 143. How far do you have to...

Consider the number 143. How far do you have to check it for factors to determine if it's prime?

Either a composite number is a perfect square, or one of its factors is smaller than its square...
Forum: Aliquot Sequences 2021-04-15, 16:23
Replies: 2,957
Views: 207,265
Posted By VBCurtis
Looks good to me- fits the trendline for C190 and...

Looks good to me- fits the trendline for C190 and C192 (never mind the outlier huge score posted for a previous C191, better than the C190 record).

I'm still busier than I like at work, too many...
Forum: Factoring 2021-04-15, 16:19
Replies: 6
Views: 221
Posted By VBCurtis
I do almost exactly what Charybdis does, though I...

I do almost exactly what Charybdis does, though I would run half a t45 and then spend at least a t45 (more like 2*t45) worth of curves with t50 bounds.

You can find out how many curves is a "t45...
Forum: Lounge 2021-04-13, 01:12
Replies: 1,348
Views: 111,407
Posted By VBCurtis
Suicide rate is down from a normal year. The...

Suicide rate is down from a normal year. The "we're in this together" group-fight proved stronger than despondency during 2020.

Moved from "Getting others to do the work on exponents I like (was:...
Forum: Aliquot Sequences 2021-04-11, 20:01
Replies: 2,957
Views: 207,265
Posted By VBCurtis
For sieving time, I'm pretty sure it'll be faster...

For sieving time, I'm pretty sure it'll be faster on f-small. I'll be test-sieving it there, at any rate.
No poly select for me until Tuesday.
Forum: Miscellaneous Math 2021-04-10, 00:33
Replies: 35
Views: 666
Posted By VBCurtis
"It's deterministic, provided these conditions...

"It's deterministic, provided these conditions are met:
{I don't know the conditions yet}"

So, it's not deterministic. You've roughly said "it is deterministic when it says a known prime is...
Forum: Soap Box 2021-04-09, 05:08
Replies: 46
Views: 1,113
Posted By VBCurtis
Round 2 goes to stocks! Just like bitcoins. :-D

Round 2 goes to stocks! Just like bitcoins. :-D
Forum: Miscellaneous Math 2021-04-08, 16:21
Replies: 79
Views: 3,195
Posted By VBCurtis
Why can't you figure out the answer yourself,...

Why can't you figure out the answer yourself, using the benchmark data publicly available?
This question is another example of wanting others to do your work for you. Go find benchmarks (Hint:...
Forum: Miscellaneous Math 2021-04-08, 03:17
Replies: 79
Views: 3,195
Posted By VBCurtis
Bringing politics into a math thread is a quick...

Bringing politics into a math thread is a quick way to get the thread closed. You seem to post in order to get attention, so I suggest you not take such actions.

Complaining about a lack of...
Forum: YAFU 2021-04-08, 03:14
Replies: 13
Views: 302
Posted By VBCurtis
My apologies for the misinformation- I've only...

My apologies for the misinformation- I've only used msieve directly, not YAFU, for poly select, so I quoted how msieve works. Mea culpa, and thanks for the correction.
Forum: YAFU 2021-04-08, 00:33
Replies: 13
Views: 302
Posted By VBCurtis
Bur- The deadline is *per coefficient*, not per...

Bur-
The deadline is *per coefficient*, not per search.
1200 sec on poly select with a deadline per-coefficient of 417 seconds is perfectly consistent. The per-coefficient deadline is because there...
Forum: NFS@Home 2021-04-08, 00:27
Replies: 97
Views: 5,665
Posted By VBCurtis
13_2_876m1 has built a 19.25M matrix at TD 108....

13_2_876m1 has built a 19.25M matrix at TD 108. It's going to need 10 days or so to solve.
Forum: Hardware 2021-04-08, 00:25
Replies: 5
Views: 202
Posted By VBCurtis
I am very interested in doing this exact-same...

I am very interested in doing this exact-same thing, if Ed gets his setup working. Two cards and a cable are fairly cheap used, and connecting just two machines means no need for a switch.

I'm...
Forum: Factoring 2021-04-07, 14:24
Replies: 23
Views: 773
Posted By VBCurtis
This makes no sense- YAFU uses the GGNFS sievers,...

This makes no sense- YAFU uses the GGNFS sievers, and you cannot use just GGNFS to factor a number (Henryzz's historical note aside). Do you mean you used factmsieve.py script as an alternative to...
Forum: Soap Box 2021-04-07, 00:11
Replies: 46
Views: 1,113
Posted By VBCurtis
This is where my misunderstanding lies- I thought...

This is where my misunderstanding lies- I thought any transaction was recorded to the blockchain, and that the process by which one gets a transaction recorded to the blockchain involves paying...
Forum: Miscellaneous Math 2021-04-06, 21:58
Replies: 79
Views: 3,195
Posted By VBCurtis
I said *fix* your hardware, not "get new...

I said *fix* your hardware, not "get new hardware". Other than ignorance, what stops you from fixing your overheating issues on your current machine? You can't buy a $10 case fan or two, or perhaps...
Forum: Soap Box 2021-04-06, 21:53
Replies: 46
Views: 1,113
Posted By VBCurtis
Is your dish bill the same number of bitcoins...

Is your dish bill the same number of bitcoins every month? Or do they change the "price" every billing period?
A recurring payment in constant number of BTC would satisfy my concept of currency,...
Forum: Soap Box 2021-04-06, 19:19
Replies: 46
Views: 1,113
Posted By VBCurtis
By your logic, stocks are currencies too. ...

By your logic, stocks are currencies too.

Which is bitcoin more like- a share of stock, or a $100 bill?
Forum: Miscellaneous Math 2021-04-06, 19:11
Replies: 79
Views: 3,195
Posted By VBCurtis
If you have overheating problems, fix your...

If you have overheating problems, fix your hardware.
Forum: Miscellaneous Math 2021-04-06, 19:02
Replies: 35
Views: 666
Posted By VBCurtis
If a counterexample *could* exist, then the test...

If a counterexample *could* exist, then the test is a probable prime test. "It's deterministic until someone finds a counterexample" is rubbish- by your logic, we could have "proof" of primality for...
Forum: Factoring 2021-04-06, 01:12
Replies: 23
Views: 773
Posted By VBCurtis
GGNFS is exactly and only the siever program that...

GGNFS is exactly and only the siever program that finds relations.
It is not, and never was, a package to run an entire NFS job.

If you want something fool-proof, use YAFU. In fact, beginners...
Forum: Miscellaneous Math 2021-04-06, 01:09
Replies: 11
Views: 216
Posted By VBCurtis
I'm sad you managed to find someone who used "one...

I'm sad you managed to find someone who used "one weird trick" clickbait for an actual math discovery.

Give quantamagazine.org a try for a better article on the research.
Forum: Miscellaneous Math 2021-04-05, 19:59
Replies: 79
Views: 3,195
Posted By VBCurtis
mfaktc doesn't do prp testing, and P95 shouldn't...

mfaktc doesn't do prp testing, and P95 shouldn't be used for trial factoring- so there ought not to be a choice to use CPU or GPU. Just use the right tool for each job, you know?
Showing results 1 to 25 of 1000

 
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