20110116, 13:34  #1013 
Oct 2009
Oulu, Finland
2×3×5 Posts 
I found a problem from the DB.
http://factordb.com/index.php?id=1100000000217043267 This 7 digit number 1210012 is fully factored, but its status is still "C". 
20110116, 13:36  #1014 
Sep 2010
Scandinavia
3×5×41 Posts 
It's the '%' again. It has been discussed earlier in the thread.

20110116, 13:38  #1015 
Just call me Henry
"David"
Sep 2007
Cambridge (GMT/BST)
2×2,897 Posts 
Yes http://factordb.com/index.php?query=1210012 is correct.

20110116, 20:22  #1016 
"William"
May 2003
New Haven
2^{3}·5·59 Posts 
Is there a way to get the database's known factorizations of the form p^q1, p an odd prime, q a prime?

20110116, 20:53  #1017 
Oct 2009
Oulu, Finland
2×3×5 Posts 

20110117, 09:56  #1018  
Mar 2006
Germany
2·1,433 Posts 
Quote:
There're several terms listed, including Cunningham numbers b^n1. Choose 'Show' to get the screen of this table. Deselect "b is even" and "b is composite", n is set to 1 by default (fill in a different value if needed) and click 'Show' to update the results. 

20110117, 18:48  #1019 
Oct 2004
Austria
4662_{8} Posts 
Sequence 84822 is broken, see here: http://www.mersenneforum.org/showthread.php?t=14859

20110117, 20:53  #1020  
"William"
May 2003
New Haven
2^{3}·5·59 Posts 
Quote:


20110117, 22:08  #1021 
Dec 2009
89 Posts 
I've noticed that the database erroneously omits some small factors of the following 77digit numbers:
Code:
80978084394598568390520920252440060895670346459831516622284554518849503146397 82609404176288347510975214065063503631619108607371480044587508148396968704911 88236918639719858997946921372584311423090252002347982879826766163694271697843 88894857952232839709785628818457172955757575436001096904562755715875193607509 92250106588933435730861605431146390431716761868772836262451636991161111409211 96219970786531934764768710647149833037379504561939264511368166182316972958369 
20110117, 23:42  #1022 
Dec 2009
89_{10} Posts 

20110118, 06:17  #1023 
A Sunny Moo
Aug 2007
USA (GMT5)
3·2,083 Posts 
@Syd: just curious, what program are you using for N1 and N+1 tests? I tried putting in a known smallish prime with a trivial N+1 factorization (50633872*3^250321) to have the DB take a whack at it, and it somewhere in the vicinity of 1220 minutes to do the N+1 test. My computer took just 90 seconds to do it even with the old (1.2) version of PFGW, so I'm guessing you must be using something different.

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