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-   -   fond of a factor? Urn yourself to become remains (https://www.mersenneforum.org/showthread.php?t=13977)

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,[/CODE]

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[/CODE]

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, [URL="http://mersenne-aries.sili.net/exponent.php?exponentdetails=54885641"]M54885641[/URL] has a factor: 10917788677651143296532439[/CODE]

10917788677651143296532439 is [URL="http://mersenne-aries.sili.net/factor.php?n=10917788677651143296532439"]Prime[/URL]

c10ck3r 2012-06-04 20:32

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

c10ck3r 2012-06-04 22:40

Quick Q?
 
[QUOTE=c10ck3r;301253][SIZE=2]45999635683923857777
[/SIZE][SIZE=2]263130442175552567999
are both factors of 2^340012417-1. Found running 65-68 bits, continuing on up.
[/SIZE][/QUOTE]

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=c10ck3r;301270]Anyone else obsessed/as fanatical as me about finding multiple factors for numbers outside of the LL/DC wavefront?[/QUOTE]

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=c10ck3r;301270]Anyone else obsessed/as fanatical as me about finding multiple factors for numbers outside of the LL/DC wavefront?[/QUOTE]
:smile: 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=c10ck3r;301270]Anyone else obsessed/as fanatical as me about finding multiple factors for numbers outside of the LL/DC wavefront?[/QUOTE]

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]
[B]tf(): total time spent: 15m 40.284s[/B]

[/CODE]
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=PageFault;301900]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.[/QUOTE]
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]
[B]estimated total time spent: 3m 24.699s[/B]
[/CODE]

[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 ...[/QUOTE]

Just for giggles I setup [URL="http://www.mersenne.org/report_exponent/?exp_lo=15000607&exp_hi=&B1=Get+status"]M15000607[/URL]: ~ 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 | [B]14m58s[/B] | 63.62M/s | 11896 | 3.01%
[/CODE]


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