20201105, 20:26  #23 
Bamboozled!
"ð’‰ºð’ŒŒð’‡·ð’†·ð’€"
May 2003
Down not across
2·7^{2}·109 Posts 

20201105, 20:41  #24 
Apr 2010
Over the rainbow
2564_{10} Posts 
*Acoustic guitar mode on*
Last fiddled with by firejuggler on 20201105 at 20:44 
20201105, 20:55  #25  
Jun 2012
Boulder, CO
280_{10} Posts 
Quote:
Code:
$ echo "2^12771"  ./ecm c 5 11e6 GMPECM 7.0.4 [configured with GMP 6.2.0, enableasmredc] [ECM] Input number is 2^12771 (385 digits) Using B1=11000000, B2=35133391030, polynomial Dickson(12), sigma=0:15382913345576557885 Step 1 took 63126ms Step 2 took 28310ms Run 2 out of 5: Using B1=11000000, B2=35133391030, polynomial Dickson(12), sigma=0:2472923556820086104 Step 1 took 63697ms Step 2 took 28330ms Run 3 out of 5: Using B1=11000000, B2=35133391030, polynomial Dickson(12), sigma=0:13772778279637613489 Step 1 took 63532ms Step 2 took 28339ms Run 4 out of 5: Using B1=11000000, B2=35133391030, polynomial Dickson(12), sigma=0:4149983287909296098 Step 1 took 65040ms Step 2 took 28394ms Run 5 out of 5: Using B1=11000000, B2=35133391030, polynomial Dickson(12), sigma=0:3089621796835281869 Step 1 took 65407ms Step 2 took 28430ms Code:
$ echo "2^12771"  ./ecm c 5 11e6 GMPECM 7.0.4 [configured with GMP 6.2.0, GWNUM 29.8, enableasmredc] [ECM] Due to incompatible licenses, this binary file must not be distributed. Input number is 2^12771 (385 digits) Using B1=11000000, B2=35133391030, polynomial Dickson(12), sigma=0:1133017334638497343 Step 1 took 52939ms Step 2 took 28574ms Run 2 out of 5: Using B1=11000000, B2=35133391030, polynomial Dickson(12), sigma=0:16936162798099609109 Step 1 took 52935ms Step 2 took 28488ms Run 3 out of 5: Using B1=11000000, B2=35133391030, polynomial Dickson(12), sigma=0:4745769159583183902 Step 1 took 52719ms Step 2 took 28706ms Run 4 out of 5: Using B1=11000000, B2=35133391030, polynomial Dickson(12), sigma=0:14575819613407288447 Step 1 took 52688ms Step 2 took 28512ms Run 5 out of 5: Using B1=11000000, B2=35133391030, polynomial Dickson(12), sigma=0:7117923393329265041 Step 1 took 52795ms Step 2 took 28585ms 

20201105, 21:06  #26 
"Ben"
Feb 2007
110101101110_{2} Posts 
Thanks, that's unexpected but neat. Wonder where the crossover is...

20201105, 23:01  #27  
Jun 2012
Boulder, CO
2^{3}×5×7 Posts 
Quote:
Code:
$ echo "2^22671"  ./ecm c 5 43e6 GMPECM 7.0.4 [configured with GMP 6.2.0, enableasmredc] [ECM] Input number is 2^22671 (683 digits) Using B1=43000000, B2=198654756318, polynomial Dickson(12), sigma=0:12068850290356100037 Step 1 took 546568ms Step 2 took 163563ms Code:
$ echo "2^22671"  ./ecm c 5 43e6 GMPECM 7.0.4 [configured with GMP 6.2.0, GWNUM 29.8, enableasmredc] [ECM] Due to incompatible licenses, this binary file must not be distributed. Input number is 2^22671 (683 digits) Using B1=43000000, B2=198654756318, polynomial Dickson(12), sigma=0:16623107045151173302 Step 1 took 250555ms Step 2 took 163852ms 

20201106, 00:10  #28 
Feb 2019
China
59 Posts 

20201106, 01:49  #29 
Jun 2012
Boulder, CO
2^{3}·5·7 Posts 
