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Search: Posts Made By: Brownfox
Forum: Factoring 2021-07-22, 09:40
Replies: 427
Views: 18,671
Posted By Brownfox
What rules of thumb are people using to decide...

What rules of thumb are people using to decide how much ECM to do before embarking on NFS?


For instance, the last composite for (6,10) is a c177 for GNFS, or a c209 for SNFS Quartic. I've done...
Forum: Factoring 2021-07-22, 09:16
Replies: 521
Views: 97,972
Posted By Brownfox
Yup, today is officially Large Factor day: ...

Yup, today is officially Large Factor day:


GMP-ECM 7.0-dev [configured with MPIR 2.6.0, --enable-openmp] [ECM]
Input number is...
Forum: Hobbies 2021-07-01, 14:30
Replies: 78
Views: 27,370
Posted By Brownfox
He's a character in a TV comedy called 'Allo...

He's a character in a TV comedy called 'Allo 'Allo.

See e.g. https://alloallo.fandom.com/wiki/Otto_Flick
Forum: Factoring 2021-06-25, 07:55
Replies: 427
Views: 18,671
Posted By Brownfox
(8,-6) completed by GNFS. C143 = P70 * P73. We...

(8,-6) completed by GNFS. C143 = P70 * P73.
We weren't likely to get that one by ECM.
Forum: Lounge 2021-06-23, 18:27
Replies: 2,101
Views: 99,206
Posted By Brownfox
errant each random result affects numeric...

errant


each random result affects numeric total


result
Forum: Factoring 2021-06-05, 21:18
Replies: 427
Views: 18,671
Posted By Brownfox
I will factor the composites for (4, -8) : line 84

I will factor the composites for (4, -8) : line 84
Forum: Science & Technology 2020-12-23, 10:21
Replies: 234
Views: 16,904
Posted By Brownfox
My father is in one of the top categories. He...

My father is in one of the top categories. He hasn't been contacted at all yet. Keeping fingers crossed he doesn't get Covid.
Forum: Msieve 2020-10-21, 19:35
Replies: 12
Views: 3,135
Posted By Brownfox
I think you've just crossed a boundary into...

I think you've just crossed a boundary into needing the 14e siever, which is why it seems to be longer.



It just needs more relations - probably 40-45 million, based on similar numbers that...
Forum: FermatSearch 2020-09-05, 19:57
Replies: 8
Views: 9,473
Posted By Brownfox
Reserving n:21000 - 22000, k:2e6 to 3e6

Reserving n:21000 - 22000, k:2e6 to 3e6
Forum: FermatSearch 2020-08-31, 13:20
Replies: 3
Views: 2,637
Posted By Brownfox
Is that the strategy? I need to run pfgw first to...

Is that the strategy? I need to run pfgw first to get a timing a d then filter until the elimination rate is less than the time to check?
Forum: FermatSearch 2020-08-31, 08:58
Replies: 3
Views: 2,637
Posted By Brownfox
Maximum prime for sieving

Sorry, couldn't find a suitable thread for this.


If I was to use gfndsieve to sieve a range of potential candidates, does anyone have any rules of thumb as to when it is best to stop sieving and...
Forum: Factoring 2020-08-10, 17:55
Replies: 964
Views: 109,336
Posted By Brownfox
All of the remaining entries in the MWRB file...

All of the remaining entries in the MWRB file have SNFS difficulty above 210.


That is about the upper limit of my resources and NFSNET has reserved the next one, so this is a good point to stop...
Forum: Lounge 2020-04-11, 06:28
Replies: 1,711
Views: 86,518
Posted By Brownfox
guest Greatly unusual Easter Saturday...

guest


Greatly unusual Easter Saturday today


today
Forum: Soap Box 2020-02-05, 16:09
Replies: 685
Views: 78,471
Posted By Brownfox
The men on horseback have vanished over the...

The men on horseback have vanished over the horizon; the 20-mule team wagons look like they're going to join them. Only the tortoises stand between the Iowa Dems and an ignominious last place in the...
Forum: Factoring 2019-09-17, 17:12
Replies: 964
Views: 109,336
Posted By Brownfox
Degree 4 will be much slower at this size of...

Degree 4 will be much slower at this size of exponent, in my experience. Degree 5 may be worth a look but I think the original polynomial from lavalamp will probably be best.
Forum: Lounge 2019-09-09, 13:31
Replies: 1,711
Views: 86,518
Posted By Brownfox
"Buffoon's organisation risible", Irish say ...

"Buffoon's organisation risible", Irish say

Irish
Forum: Lounge 2019-08-04, 20:48
Replies: 4,343
Views: 351,272
Posted By Brownfox
<pedant>Actually XXXX was the original form of 40...

<pedant>Actually XXXX was the original form of 40 - XL was a later addition. So as long as you mean 40 and not beer, you'll be ok.</pedant>
Forum: Lounge 2019-07-08, 20:22
Replies: 4,343
Views: 351,272
Posted By Brownfox
Some people who know about these things have...

Some people who know about these things have suggested (https://www.primitiveways.com/marcasite%20and%20flint.html) that flint can be used to generate a spark using naturally occurring iron...
Forum: Factoring 2019-05-24, 17:44
Replies: 964
Views: 109,336
Posted By Brownfox
That's what I've been doing. So far as I am aware...

That's what I've been doing. So far as I am aware only RichD and I are factoring these anyway.
Forum: Factoring 2019-04-08, 08:51
Replies: 14
Views: 2,975
Posted By Brownfox
I'm factoring composites from the MWRB file in...

I'm factoring composites from the MWRB file in SNFS difficulty order regardless of weight. There are no composites left with difficulty under 200 digits.
Forum: Factoring 2019-04-04, 12:29
Replies: 964
Views: 109,336
Posted By Brownfox
All done. That completes all the Most Wanted...

All done. That completes all the Most Wanted numbers with SNFS difficulty under 200 digits,
Forum: Lounge 2019-03-27, 09:50
Replies: 53
Views: 2,600
Posted By Brownfox
Forum: Lounge 2019-03-19, 15:27
Replies: 230
Views: 42,846
Posted By Brownfox
Yop. I've seen videos of this behaviour...

Yop. I've seen videos of this behaviour somewhere.

I regularly pass Eurasian magpies (Pica pica) waiting on the hard shoulder next to a piece of roadkill. They've figured out that cars don't come...
Forum: Lounge 2019-03-19, 15:16
Replies: 1,711
Views: 86,518
Posted By Brownfox
Bercow revelation arrests isolationist notion ...

Bercow revelation arrests isolationist notion

speak
Forum: Factoring 2019-03-12, 07:47
Replies: 964
Views: 109,336
Posted By Brownfox
Now taking 3754507^29-1 and 2507473*31-1

Now taking 3754507^29-1 and 2507473*31-1
Showing results 1 to 25 of 69

 
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