fond of a factor? Urn yourself to become remains - Page 34

PageFault · 2012-06-01, 01:03

Code:

P-1 found a factor in stage #2, B1=810000, B2=21060000.
UID: PageFault/boxen_01, M70002167 has a factor: 23343692938910511396401,

k is pretty rough:

2^3 * 5^2 * 714223 * 1167251

PageFault · 2012-06-01, 01:22

Code:

P-1 found a factor in stage #1, B1=95000.
UID: PageFault/boxen_01, M8360353 has a factor: 123253905513130626056631481

This one should have been found in the original run.

k:

2^2 * 3^2 * 5 * 7 * 41 * 431 * 1289 * 4073 * 63059

flashjh · 2012-06-04, 18:50

Code:

[Mon Jun 04 09:47:31 2012]
P-1 found a factor in stage #1, B1=545000.
UID: flashjh/TF3, M54885641 has a factor: 10917788677651143296532439

10917788677651143296532439 is Prime

c10ck3r · 2012-06-04, 20:32

45999635683923857777
263130442175552567999
are both factors of 2^340012417-1. Found running 65-68 bits, continuing on up.

c10ck3r · 2012-06-04, 22:40

Quote:

Originally Posted by c10ck3r

45999635683923857777
263130442175552567999
are both factors of 2^340012417-1. Found running 65-68 bits, continuing on up.

Anyone else obsessed/as fanatical as me about finding multiple factors for numbers outside of the LL/DC wavefront?

Dubslow · 2012-06-04, 23:42

Quote:

Originally Posted by c10ck3r

Anyone else obsessed/as fanatical as me about finding multiple factors for numbers outside of the LL/DC wavefront?

Personally, no. I'm just waiting until quantum computers get under way, with their polynomial-factoring-algorithms. The current record holder is 143=11*13.

Brain · 2012-06-05, 05:32

Quote:

Originally Posted by c10ck3r

Anyone else obsessed/as fanatical as me about finding multiple factors for numbers outside of the LL/DC wavefront?

I am not alone... But I'm satisfied to find the first known factor. Currently upping 2M to 2^62.

PageFault · 2012-06-07, 01:48

You are not alone ... I'm getting all sort of crazy ideas for P-1. Can't act out on this at the moment - current machine is crap. When I do replace it, I will be going for a minimum of 64 GB of ram (even that is too low). All depends on the next job I find ... that is not too far off and I found that I am worth far more than I imagined, and my sector is booming ...

Quote:

Originally Posted by c10ck3r

Anyone else obsessed/as fanatical as me about finding multiple factors for numbers outside of the LL/DC wavefront?

flashjh · 2012-06-09, 20:49

Code:

 
got assignment: exp=57606359 bit_min=71 bit_max=72
Starting trial factoring M57606359 from 2^71 to 2^72
 k_min = 20494119764580
 k_max = 40988239535062
Using GPU kernel "barrett79_mul32"
    class | candidates |    time |    ETA | avg. rate | SievePrimes | CPU wait
 429/4620 |      1.03G | 10.415s |  2h31m |  98.87M/s |       10816 |    3.62%
M57606359 has a factor: 3086670355345499795863
found 1 factor for M57606359 from 2^71 to 2^72 (partially tested) [mfaktc 0.18 barrett79_mul32]
tf(): total time spent: 15m 40.284s

Always nice to find a factor fast

PageFault · 2012-06-10, 01:54

Right on mate. I remember back in the day, we often found 58 or 59 bit factors within minutes. I once did this with a pentium 133 ... three minutes into the run, which took close to a month if no factor was found.

Let's see ... M15xxxxxx, 58 to 65 bits, these days might take half an hour ... no idea, but maybe a good gpu in minutes ...

flashjh · 2012-06-10, 21:48

Quote:

Originally Posted by PageFault

Right on mate. I remember back in the day, we often found 58 or 59 bit factors within minutes. I once did this with a pentium 133 ... three minutes into the run, which took close to a month if no factor was found.

Though finding one in a few minutes isn't saving anywhere close to that much time, I have another one in as many days...

Code:

 
got assignment: exp=57620203 bit_min=71 bit_max=72
Starting trial factoring M57620203 from 2^71 to 2^72
 k_min = 20489195787060
 k_max = 40978391579682
Using GPU kernel "barrett79_mul32"
  found 0 factor(s) already
    class | candidates |    time |    ETA | avg. rate | SievePrimes | CPU wait
 876/4620 |      1.07G | 11.111s |  2h23m |  96.07M/s |        7396 |    6.06%
M57620203 has a factor: 3169216471470499491337
found 1 factor for M57620203 from 2^71 to 2^72 (partially tested) [mfaktc 0.18 barrett79_mul32]
      estimated total time spent:  3m 24.699s

Quote:

Let's see ... M15xxxxxx, 58 to 65 bits, these days might take half an hour ... no idea, but maybe a good gpu in minutes ...

Just for giggles I setup M15000607: ~ 15 minutes on my 580 (with 4 other workers running concurrently)

Code:

 
got assignment: exp=15000607 bit_min=58 bit_max=65
Starting trial factoring M15000607 from 2^58 to 2^65
 k_min = 9607290000
 k_max = 1229733175044
Using GPU kernel "75bit_mul32"
    class | candidates |    time |    ETA | avg. rate | SievePrimes | CPU wait
  89/4620 |     60.82M |  0.956s | 14m58s |  63.62M/s |       11896 |    3.01%

2012-06-01, 01:03	#364
PageFault Aug 2002 Dawn of the Dead 353₈ Posts	Code: P-1 found a factor in stage #2, B1=810000, B2=21060000. UID: PageFault/boxen_01, M70002167 has a factor: 23343692938910511396401, k is pretty rough: 2^3 * 5^2 * 714223 * 1167251

2012-06-01, 01:22	#365
PageFault Aug 2002 Dawn of the Dead 5·47 Posts	Code: P-1 found a factor in stage #1, B1=95000. UID: PageFault/boxen_01, M8360353 has a factor: 123253905513130626056631481 This one should have been found in the original run. k: 2^2 * 3^2 * 5 * 7 * 41 * 431 * 1289 * 4073 * 63059

2012-06-04, 18:50	#366
flashjh "Jerry" Nov 2011 Vancouver, WA 1,123 Posts	Code: [Mon Jun 04 09:47:31 2012] P-1 found a factor in stage #1, B1=545000. UID: flashjh/TF3, M54885641 has a factor: 10917788677651143296532439 10917788677651143296532439 is Prime

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
A new factor of F11?!	siegert81	FermatSearch	2	2018-01-24 04:35
A fond farewell	rogue	Lounge	10	2008-11-21 05:25
who can factor 10^100+27?	aaa120	Factoring	17	2008-11-13 19:23
New factor	fivemack	ElevenSmooth	4	2008-05-07 19:28
Shortest time to complete a 2^67 trial factor (no factor)	dsouza123	Software	12	2003-08-21 18:38

2012-06-04, 20:32	#367
c10ck3r Aug 2010 Kansas 547 Posts	45999635683923857777 263130442175552567999 are both factors of 2^340012417-1. Found running 65-68 bits, continuing on up.

2012-06-10, 01:54	#373
PageFault Aug 2002 Dawn of the Dead 5×47 Posts	Right on mate. I remember back in the day, we often found 58 or 59 bit factors within minutes. I once did this with a pentium 133 ... three minutes into the run, which took close to a month if no factor was found. Let's see ... M15xxxxxx, 58 to 65 bits, these days might take half an hour ... no idea, but maybe a good gpu in minutes ...