20220817, 02:22  #716 
"Ed Hall"
Dec 2009
Adirondack Mtns
4,721 Posts 
I ran my search for completed bases and our lists are close, but I show base 70 with an open sequence at 70^72: 201/181, due to a merge with 1074.

20220817, 03:40  #717  
May 2007
Kansas; USA
2^{7}×3×29 Posts 
Quote:
After our previous discussion, I no longer considered merges as remaining and removed them from my spreadsheet resulting in base 70 having zero remaining. Semantics really. I was wanting the list verified more than anything. 

20220817, 04:06  #718 
"Curtis"
Feb 2005
Riverside, CA
2^{2}·3·449 Posts 
I factored:
82^92 C142 61^99 C139 770^60 C140 It's nice to work on just a single params file, trying lots of different settings. Sadly, I have not yet found the magic key to the 1015% more speed I expect exists. I'll continue on the list from post #684. If any of those numbers get factored, please delete them from that list? Also, may I delete the ones I've factored from there, so I can more easily see what is still available? 
20220817, 04:29  #719  
May 2007
Kansas; USA
2^{7}·3·29 Posts 
Quote:


20220817, 10:32  #720 
May 2007
Kansas; USA
2^{7}×3×29 Posts 
720^56 and 1058^51 terminate
This leaves 2 remaining for base 720. I brought all of the cofactors for sameparities up to C>=120 tonight. There were 9 such sequences for startingsize <=185, all originally with factor 3 in them. All are done now. In doing so, I found some sequences that might be of interest: Ed, you might like another one with no known factor to ECM t45: 91^85: 165/165 It's interesting how it dropped the 3 factor along with everything else on the current iteration. Mike, if you need more work, here are a couple at ECM t35 that you can add to your list that fit your criteria: 1210^52: 161/142/3 92^84: 165/145/5 
Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Unexpected termination of PM1  Miszka  Software  22  20211119 21:36 
Easier pi(x) approximation  mathPuzzles  Math  8  20170504 10:58 
Would finding a definate Pi value easier if...  xtreme2k  Math  34  20130909 23:54 
Aliquot Termination Question  Largest Prime?  EdH  Aliquot Sequences  6  20100406 00:12 
A new termination below 100k  10metreh  Aliquot Sequences  0  20100311 18:24 