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Search: Posts Made By: chris2be8
Forum: Aliquot Sequences 2020-07-15, 16:02
Replies: 2
Views: 59
Posted By chris2be8
That's one case of the fact that any multiple of...

That's one case of the fact that any multiple of a perfect or abundant number will be abundant. Think about it for a minute and you should be able to prove it.

Chris
Forum: NFS@Home 2020-07-13, 16:14
Replies: 2,430
Views: 95,444
Posted By chris2be8
QUEUED AS f46_149m1 (46^149-1)/45 from the...

QUEUED AS f46_149m1

(46^149-1)/45 from the Brent tables:

# Built Sun Jul 12 06:51:37 2020
# Estimated SNFS difficulty 250, GNFS equivalent 180, GNFS difficulty 247, degree 6
n:...
Forum: NFS@Home 2020-07-13, 16:04
Replies: 330
Views: 19,517
Posted By chris2be8
f87_127m1 is done: p64 factor:...

f87_127m1 is done:

p64 factor: 1626790518933699660217425990919548194494386752643800042237225909
p122 factor:...
Forum: Mlucas 2020-07-13, 15:44
Replies: 55
Views: 5,870
Posted By chris2be8
I learnt a lot about FTP by typing help when in...

I learnt a lot about FTP by typing help when in it. That gets a list of commands and you can the ask for help on each command. Which is a bit more concise than the man page.

It's especially useful...
Forum: Mlucas 2020-07-12, 15:31
Replies: 55
Views: 5,870
Posted By chris2be8
From the man page for ftp: So you can...

From the man page for ftp:


So you can copy and rename a file in one operation. The whole man page for ftp is well worth reading if you use it at all often.

Chris
Forum: NFS@Home 2020-07-10, 15:55
Replies: 330
Views: 19,517
Posted By chris2be8
f84_128p1 is factored: p82 factor:...

f84_128p1 is factored:

p82 factor: 3750014435645851219459254960306953257318650027343054336757561710083126238929618433
p129 factor:...
Forum: Mlucas 2020-07-10, 15:36
Replies: 55
Views: 5,870
Posted By chris2be8
Could it have taken the file name you gave it...

Could it have taken the file name you gave it ,including the ../, as the desired destination, and put the files one level up from where you meant to put them? That would explain things.

Also check...
Forum: NFS@Home 2020-07-08, 06:36
Replies: 330
Views: 19,517
Posted By chris2be8
Reserving f87_127m1 for post processing. ...

Reserving f87_127m1 for post processing.

Chris
Forum: NFS@Home 2020-07-07, 15:37
Replies: 2,430
Views: 95,444
Posted By chris2be8
QUEUED AS f44_151m1 Another from the Brent...

QUEUED AS f44_151m1

Another from the Brent tables, (44^151-1)/240807759473396327943343676678772893339854695103174466261

# Built Mon Jul 6 19:43:00 2020
# Estimated SNFS difficulty 249, GNFS...
Forum: NFS@Home 2020-07-06, 15:48
Replies: 2,430
Views: 95,444
Posted By chris2be8
QUEUED AS f21_188p1 ...

QUEUED AS f21_188p1

(21^188+1)/1902188735102433410617318127445714977955738392928258562 from the Brent tables:

# Built Sun Jul 5 17:48:21 2020
# Estimated SNFS difficulty 249, GNFS equivalent...
Forum: NFS@Home 2020-07-05, 15:53
Replies: 330
Views: 19,517
Posted By chris2be8
f37_158p1 is factored: p72 factor:...

f37_158p1 is factored:

p72 factor: 842103599991832036515781850994832484097946100067722511651895901874657037
p76 factor:...
Forum: NFS@Home 2020-07-03, 16:54
Replies: 2,430
Views: 95,444
Posted By chris2be8
QUEUED AS f17_202p1 ...

QUEUED AS f17_202p1

(17^202+1)/2993094896091712140927615567680388290 from the Brent tables:

# Built Thu Jul 2 20:27:18 2020
# Estimated SNFS difficulty 252, GNFS equivalent 182, GNFS...
Forum: Tales From the Crypt(o) 2020-07-03, 15:58
Replies: 17
Views: 509
Posted By chris2be8
From the first link...

From the first link https://www.silicon.co.uk/mobility/mobile-apps/police-crack-encrochat-encryption-hundreds-arrests-346164



Which isn't dramatically faster than I could factor a 512 bit...
Forum: XYYXF Project 2020-07-02, 15:43
Replies: 385
Views: 31,929
Posted By chris2be8
rogue, can you post a sample file that works for...

rogue, can you post a sample file that works for you. Then pxp can run that to check his binary is OK, then change 1 thing at a time until it's doing what he wants. I've found that starting from a...
Forum: NFS@Home 2020-07-02, 15:34
Replies: 330
Views: 19,517
Posted By chris2be8
Taking f84_128p1 for post-processing. Chris

Taking f84_128p1 for post-processing.

Chris
Forum: NFS@Home 2020-07-02, 15:32
Replies: 2,430
Views: 95,444
Posted By chris2be8
QUEUED AS f88_127p1 ...

QUEUED AS f88_127p1

(88^127+1)/53450215523987774306629681824350919523 from the Brent tables:

# Built Wed Jul 1 17:59:13 2020
# Estimated SNFS difficulty 247, GNFS equivalent 178, GNFS...
Forum: NFS@Home 2020-07-01, 15:42
Replies: 2,430
Views: 95,444
Posted By chris2be8
QUEUED AS f86_131m1 ...

QUEUED AS f86_131m1

(86^131-1)/127296350506000474708670512286771610891902627605122671646543238329335622840049145135 from the Brent tables:

n:...
Forum: CADO-NFS 2020-06-28, 19:00
Replies: 15
Views: 824
Posted By chris2be8
I've decided to do 86^131-1 via NFS@Home. I've...

I've decided to do 86^131-1 via NFS@Home. I've found the following poly (9 hours msieve-gpu searching):

n:...
Forum: Tales From the Crypt(o) 2020-06-27, 16:36
Replies: 245
Views: 25,411
Posted By chris2be8
The only effective way is to minimise use of the...

The only effective way is to minimise use of the internet, without being too obvious about it. A good start is to stop using it an hour or so before going to bed and tell your friends you are doing...
Forum: Computer Science & Computational Number Theory 2020-06-27, 16:24
Replies: 9
Views: 416
Posted By chris2be8
The paper says that all composite Mersenne...

The paper says that all composite Mersenne numbers (2^p-1 where p is an odd prime) are 2-PSP. But it doesn't say if they are likely to be Lucas-PSP. So would checking Mersenne numbers be a good place...
Forum: NFS@Home 2020-06-27, 16:02
Replies: 330
Views: 19,517
Posted By chris2be8
f37_158p1 has built a matrix. About 170 hours...

f37_158p1 has built a matrix. About 170 hours remain, so I should have a result a week tomorrow.

Chris
Forum: NFS@Home 2020-06-26, 15:37
Replies: 2,430
Views: 95,444
Posted By chris2be8
QUEUED AS f87_127m1 ...

QUEUED AS f87_127m1

(87^127-1)/16076986202240559519489930196613207134127512587971010756350926 from the Brent tables:

# Built Thu Jun 25 20:07:11 2020
# Estimated SNFS difficulty 247, GNFS...
Forum: NFS@Home 2020-06-23, 16:06
Replies: 330
Views: 19,517
Posted By chris2be8
Taking f37_158p1. It will take a while to...

Taking f37_158p1. It will take a while to download the relations though.

Chris
Forum: NFS@Home 2020-06-23, 16:03
Replies: 330
Views: 19,517
Posted By chris2be8
f33_163m1,...

f33_163m1, (33^163-1)/239433774250958053740230937550066016, is factored:

p55 factor: 4437594388783355046299961264373382707137872983777643537
p158 factor:...
Forum: NFS@Home 2020-06-19, 16:08
Replies: 330
Views: 19,517
Posted By chris2be8
f15_211p1 is done: p77 factor:...

f15_211p1 is done:

p77 factor: 30160932199051488553100734426184978729198379735436211956618715302271028429683
p140 factor:...
Showing results 1 to 25 of 1000

 
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