20220120, 16:11  #793 
"James Heinrich"
May 2004
exNorthern Ontario
3×1,237 Posts 

20220120, 16:29  #795  
Jun 2003
23×233 Posts 
Quote:
27.0  https://www.mersenne.ca/p1missed.php...0&max=27100000  anything 75+ bits is found by me where the previous P1 should've found 19.5  https://www.mersenne.ca/p1missed.php...0&max=19600000  anything 73+ bit is found by me via P1 or by TF (not me) recently. I am not yet done with 19.5, so more could get uncovered. The original P1 were all done way back around 2003 or so. Nonetheless, it is disturbingly large amount of bad P1. 

20220120, 17:29  #797 
Jul 2003
Behind BB
7×269 Posts 
Missed P1 factors discussed frequently here.
TL;DR: Early results (say pre2003) aren't necessarily reliable. Last fiddled with by masser on 20220120 at 17:30 
20220120, 17:51  #798  
"Curtis"
Feb 2005
Riverside, CA
1010010011111_{2} Posts 
Quote:
Thanks for the corrections, and sorry to suggest Zhang was mistaken. 

20220120, 19:29  #800 
Dec 2016
76_{16} Posts 
The "Missed Factor" feature seems to still be a bit buggy:
https://www.mersenne.ca/exponent/12133333 Those newly discovered factores require larger B2 values than 400k, so they were not missed by the P1 run with B1=B2=400,000. https://www.mersenne.ca/exponent/726064763 The TF/P1 that got flagged was done after the respective factors were discovered. 
20220120, 19:44  #801  
"James Heinrich"
May 2004
exNorthern Ontario
3×1,237 Posts 
Quote:
If you mouseover any "MISSED FACTOR" text you'll see the first (smallest) factor the code has noticed should have been found. 

20220120, 21:22  #803  
"James Heinrich"
May 2004
exNorthern Ontario
3·1,237 Posts 
Quote:
If the user did indeed factor from 8283 complete and did not stop after finding the factor, the it should be reported as a completed TFF run, with factor, not as TFNF. 

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