20120215, 20:23  #1365 
Oct 2004
Austria
2482_{10} Posts 
Hmmm.... seems there seems to be that "doublecheck primality" and "doublecheck sequence" buttons would be needed for registered users?
Last fiddled with by Andi47 on 20120215 at 20:24 Reason: added missing word 
20120217, 17:12  #1366 
Sep 2010
Portland, OR
2^{2}·3·31 Posts 
878560 is another broken Aliquot sequence  it thinks 531754410288614879 is prime.
Also 363270. 
20120223, 12:42  #1367 
"Frank <^>"
Dec 2004
CDP Janesville
2·1,061 Posts 
I turned up some more problem sequences when I pulled the latest status.
There seem to be these that have problems: Code:
75402 i2501 has a composite marked as prime 174888 i142>i143 (found by bchaffin) 363270 i261>i262 (found by bchaffin) 459980 i422>i423 700128 i230>i231 722430 i214 has a composite marked as prime 864792 i250>i251 Last fiddled with by schickel on 20120223 at 12:43 Reason: Correcting an error I made in a sequence error 
20120223, 14:07  #1368 
"Ed Hall"
Dec 2009
Adirondack Mtns
47×79 Posts 

20120224, 01:36  #1369 
"Frank <^>"
Dec 2004
CDP Janesville
2×1,061 Posts 

20120224, 17:18  #1370  
Sep 2009
2^{3}·3·5·17 Posts 
Quote:
Chris K 

20120308, 19:28  #1371 
"Daniel Jackson"
May 2011
14285714285714285714
2×5^{2}×13 Posts 
Why am I getting a "you have reached the hourly limit of 3000 ID's created" message even though I am logged in? It shouldn't say that.

20120308, 19:55  #1372 
Apr 2010
Over the rainbow
2^{2}×641 Posts 
another problem I noticed is
http://factordb.com/index.php?id=1100000000489773674 , a 638 digits prp, cert uploaded the 16 february( by me) and verified, but still considered as a prp 
20120308, 21:17  #1373 
"Daniel Jackson"
May 2011
14285714285714285714
2·5^{2}·13 Posts 
I have that problem too. When I was trying to prove a 400+ digit prime, I uploaded the cert and it said it was successfully processed (it even said "P" beside it), but it didn't say "Proven by Certificate".

20120315, 14:32  #1374 
May 2009
Dedham Massachusetts USA
3·281 Posts 
The aliquot sequence 979884 is also having an issue at index 331 to 332:
331 33 (show) 180539934906725323309899308491200<33> = 2^6 · 3^2 · 5^2 · 17 · 1594674553<10> · 462476643092266223<18> The final 18 digit number is not prime: http://factorization.ath.cx/index.ph...76643092266223 Oddly, this link doesn't lead to a consistent value for me  Sometimes I get the number = itself and the other times I get the factorization into two primes. Its like there are two entries that it can choose from. In any case the aliquot sequence has the wrong one. 
20120316, 20:30  #1375 
Mar 2012
1 Posts 
Home prime data out of date
Kind of rushed in library here, so probably there is a better thread than this one (apologies). Just want to bring to any regular editor's attention that there has been significant change in the situation regarding the homeprime sequence of 49 (not solved, just more iterates complete) since the page dealing with that was last edited here. If anybody with time on his/her hands for some simple editing would like to post the new status of the problem, that uptodate info can be found (and easily checked) at www.worldofnumbers.com (It is called topic 1, but you will have to go down the main page to find it, because the site primarily concerns palindromes). Thanks. I will do myself some day if it remains.

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