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Search: Posts Made By: penlu
Forum: FactorDB 2020-11-20, 20:01
Replies: 54
Views: 8,222
Posted By penlu
This is how I upload my results, but I advise not...

This is how I upload my results, but I advise not to do this because you might create many new IDs -- I set my stuff to upload only the largest factor found.

I realize this probably increases the...
Forum: FactorDB 2020-11-20, 02:51
Replies: 54
Views: 8,222
Posted By penlu
I can't get enough numbers to run into the page...

I can't get enough numbers to run into the page request limit. Instead I've been running into the "IDs created" limit. Submitting a factorization of a number into a product of many small (< 10000)...
Forum: FactorDB 2020-11-18, 11:05
Replies: 54
Views: 8,222
Posted By penlu
Here is some python:...

Here is some python: https://github.com/penlu/factoring

The code is messy and variously suboptimal. Let me know if something is broken or if you need additional information to get it working.
...
Forum: Cunningham Tables 2019-04-07, 09:26
Replies: 236
Views: 47,127
Posted By penlu
So far done around 4k curves at B1=11000000,...

So far done around 4k curves at B1=11000000, B2=10*B1 for the C1996.
Forum: Cunningham Tables 2019-04-03, 04:38
Replies: 236
Views: 47,127
Posted By penlu
Big mistake, I was looking at a probability of...

Big mistake, I was looking at a probability of being about-60-digit-smooth, obviously far smaller than factor finding probability. And I'm off by thirty orders even then. No idea why all of that...
Forum: Cunningham Tables 2019-04-02, 14:30
Replies: 236
Views: 47,127
Posted By penlu
At risk of being the 5-year-old with the "why"s,...

At risk of being the 5-year-old with the "why"s, I want to know why the poster wants to know that that number is prime...
Forum: Cunningham Tables 2019-04-02, 12:16
Replies: 236
Views: 47,127
Posted By penlu
This thread reads to me like people telling you...

This thread reads to me like people telling you not to expect to find factors of 3^504205+1 or 3^504206+1. For contributing to the Cunningham project, a number of posters have indicated that signing...
Forum: Lone Mersenne Hunters 2019-03-22, 13:53
Replies: 1,797
Views: 187,357
Posted By penlu
M92617193 is divisible by...

M92617193 is divisible by 1175619298002469430597399521162713999664087. This 139.75-bit factor brought to you by P-1.
Forum: Miscellaneous Math 2019-02-22, 09:57
Replies: 37
Views: 12,372
Posted By penlu
I can also offer verification via CUDALucas in 90...

I can also offer verification via CUDALucas in 90 hours.
Forum: Aliquot Sequences 2019-02-02, 08:04
Replies: 3,401
Views: 302,148
Posted By penlu
Take 1488 Drop 678024 835280 971280 Did...

Take 1488

Drop 678024 835280 971280

Did up to a t45 on 678024, 835280, 971280 (all low C140 range), no factors.
Forum: Aliquot Sequences 2019-01-24, 18:02
Replies: 3,401
Views: 302,148
Posted By penlu
Update 27324 98976 456080 835280 Drop 587886...

Update 27324 98976 456080 835280

Drop 587886

587886: did one t45
Forum: Aliquot Sequences 2019-01-23, 07:36
Replies: 3,401
Views: 302,148
Posted By penlu
Take 98976

Take 98976
Forum: Aliquot Sequences 2019-01-22, 20:00
Replies: 3,401
Views: 302,148
Posted By penlu
Update 456080 461988 464022 525952 587886 664596...

Update 456080 461988 464022 525952 587886 664596 670278 678024 835280 926688 940380 971280
Take 27324 30352 34908 42672 96522 99312
Forum: Aliquot Sequences 2019-01-21, 10:17
Replies: 3,401
Views: 302,148
Posted By penlu
Update 339750 384264 423700 815136 Take 456080...

Update 339750 384264 423700 815136
Take 456080 461988 464022 525952 587886 664596 670278 678024 835280 926688 940380 971280
Forum: Aliquot Sequences 2019-01-21, 09:22
Replies: 3,401
Views: 302,148
Posted By penlu
Drop 2982 17920 curves at B1=44e6, B2=44e8...

Drop 2982

17920 curves at B1=44e6, B2=44e8 for this C180
Forum: Aliquot Sequences 2019-01-20, 19:38
Replies: 3,401
Views: 302,148
Posted By penlu
Take 2982 Update 618588 954696 836958

Take 2982
Update 618588 954696 836958
Forum: YAFU 2019-01-08, 20:22
Replies: 11
Views: 6,135
Posted By penlu
Do you know anything more about these factors,...

Do you know anything more about these factors, e.g. that their difference is fairly small...?
Forum: GPU Computing 2018-12-23, 00:31
Replies: 40
Views: 3,871
Posted By penlu
I have done only the very preliminary check of...

I have done only the very preliminary check of using SP library FFT rather than DP library FFT in CUDALucas -- this failed to produce round-off errors less than 0.5 for FFT lengths up to 30000K on...
Forum: Marin's Mersenne-aries 2018-12-21, 19:17
Replies: 1,841
Views: 119,603
Posted By penlu
I apologize if I've stepped on toes! Chuck's...

I apologize if I've stepped on toes! Chuck's result for M47199343 is replicated. Still not sure if it's verification with prime95 that is specifically desired; if it is then I guess this result...
Forum: Marin's Mersenne-aries 2018-12-20, 16:18
Replies: 1,841
Views: 119,603
Posted By penlu
Is CUDALucas acceptable?

Is CUDALucas acceptable?
Forum: GPU to 72 2018-12-08, 06:32
Replies: 37
Views: 13,552
Posted By penlu
Personally, regarding TF vs. P-1: I find with my...

Personally, regarding TF vs. P-1: I find with my hardware that, in terms of maximizing d(probability of getting a factor)/dt, I should not TF to a higher level than around 74 bits. For exponents near...
Forum: Lone Mersenne Hunters 2018-12-04, 17:46
Replies: 1,797
Views: 187,357
Posted By penlu
This time CUDAPm1's Brent-Suyama extension...

This time CUDAPm1's Brent-Suyama extension actually helped!

M88729169 is split by:



203879517521451990434959 - 1 = 2 × 3 × 7 × 107 × 113 × 4524761281 × 88729169

4524761281 / 18933750 ~...
Forum: Lone Mersenne Hunters 2018-08-21, 06:12
Replies: 1,797
Views: 187,357
Posted By penlu
It's special to me because it's my first :'( ...

It's special to me because it's my first :'(

I found a factor 7235281275265153693689909724758049 of M91943, which is the first my hardware has found using ECM.
Forum: GMP-ECM 2018-08-16, 03:17
Replies: 0
Views: 4,260
Posted By penlu
ECMNET status?

I am wondering whether ECMNET is still running and whether the webpage is up to date, especially the quick start section (https://members.loria.fr/PZimmermann/ecmnet/). There is a link to an input...
Forum: Lone Mersenne Hunters 2018-08-15, 18:19
Replies: 1,797
Views: 187,357
Posted By penlu
mersenne.ca isn't taken by these shenanigans...

mersenne.ca isn't taken by these shenanigans (http://www.mersenne.ca/brent-suyama.php) :) 88,078,153 isn't listed there
Showing results 1 to 25 of 31

 
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