20210717, 14:05  #573 
1976 Toyota Corona years forever!
"Wayne"
Nov 2006
Saskatchewan, Canada
2×5×499 Posts 

20210717, 14:44  #574 
"6800 descendent"
Feb 2005
Colorado
13×53 Posts 

20210718, 06:43  #575 
Dec 2002
5×167 Posts 
Today I also got a new personal record:
https://www.mersenne.org/report_expo...214847&full=1# 135.7 bits Just sharing the joy. 
20210718, 08:29  #576 
Romulan Interpreter
"name field"
Jun 2011
Thailand
71·139 Posts 

20210718, 16:36  #577 
Romulan Interpreter
"name field"
Jun 2011
Thailand
23215_{8} Posts 
Chris, is everything ok with the twok page? I seem to be unable to access it, regardless of the browser. It just shows an empty screen.

20210718, 16:53  #578 
If I May
"Chris Halsall"
Sep 2002
Barbados
61·167 Posts 

20210720, 11:46  #579 
Mar 2017
Halifax, NS
7^{2} Posts 
Have started working on taking 12.2M to 71 bits.

20210721, 03:54  #580 
Romulan Interpreter
"name field"
Jun 2011
Thailand
71×139 Posts 
This 188 bits factor should have been a very nice record ...
Except.... Code:
Splitting composite factor 317126962428718354552798557405359962578621220783007834567 into: * 249515320122942257599965540869737 * 1270971907746835740860591 processing: P1 factor 249515320122942257599965540869737 for M11886943 (B1=6,189,107, B2=185,673,210) (107.621 bits) CPU credit is 8.9141 GHzdays. processing: P1 factor 1270971907746835740860591 for M11886943 (B1=6,189,107, B2=185,673,210) (80.072 bits) CPU credit is 8.9141 GHzdays. Last fiddled with by LaurV on 20210721 at 03:56 
20210722, 18:42  #581 
"Seth"
Apr 2019
2·5·41 Posts 
I'm having bad luck. I've completed 406 TF assignments (203 TF=70, 203 TF=71) in the 14.65 range and found only one factor.
My math for the odds of this (assuming 1/70 and 1/71 success) is odds of no factor: (69/70)^203 * (70/71)^203 = 0.003 odds of one factor: 1/70 * (69/70)^202 * (70/71)^203 * (406 choose 1) = 0.0178 I was starting to question my hardware (despite selftest and selftest2 both passing) but I guess this isn't too unreasonable (2% of the time I'd be writing this post). 
20210722, 19:35  #582  
Jul 2003
Behind BB
3·601 Posts 
Quote:
So, slightly unlucky, yes; but not too far out of the ordinary. 

20210722, 19:51  #583  
1976 Toyota Corona years forever!
"Wayne"
Nov 2006
Saskatchewan, Canada
11576_{8} Posts 
Quote:
My record is 633 TF between factors; with 14 times over 400 attempts. I also have more than 50 times with 2 factors in less than 10 attempts. However, my average over 75,000 attempts still averages to about 1/100; This is working in ranges with LOTS of P1 done. Other ranges with standard levels if P1 are giving me averages of 1/85 attempts. 

Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Thinking of Joining GPU to 72  jschwar313  GPU to 72  3  20160131 00:50 
Thinking about lasieve5  Batalov  Factoring  6  20111227 22:40 
Thinking about buying a panda  jasong  jasong  1  20081111 09:43 
Loud thinking on irregular primes  devarajkandadai  Math  4  20070725 03:01 
Question on unfactored numbers...  WraithX  GMPECM  1  20060319 22:16 