20221125, 21:38  #133 
"Ed Hall"
Dec 2009
Adirondack Mtns
5231_{10} Posts 
96^81 gave an interesting split: c153 = p50 * p51 * p53

20221126, 01:17  #134 
"Gary"
May 2007
Overland Park, KS
11813_{10} Posts 
A couple of questions to keep my spreadsheet current:
Are all of the C153s now ECM'd to t50? Have all of the ones that were added from new bases 47616, 1305184, and 1727636 been ECM'd to t50? 
20221126, 03:08  #135 
"Ed Hall"
Dec 2009
Adirondack Mtns
146F_{16} Posts 
Yes, for the new bases (all four in three bases). The c153s are in work.

20221127, 02:05  #136 
"Ed Hall"
Dec 2009
Adirondack Mtns
5,231 Posts 
Now everything > 150 digits has been ECM'd to t50. Several broke.

20221127, 23:46  #137 
"Ed Hall"
Dec 2009
Adirondack Mtns
5231_{10} Posts 
OK, all cofactors have had t50 ECM.

20221204, 13:35  #138 
"Ed Hall"
Dec 2009
Adirondack Mtns
5,231 Posts 
40^106 has advanced.
ETA: And so has 55^94. ETA2: 63^97 has advanced. Last fiddled with by EdH on 20221205 at 14:04 
20221206, 15:06  #139 
"Ed Hall"
Dec 2009
Adirondack Mtns
5,231 Posts 
210^73, 231^67 and 52^91 have advanced.

20221211, 01:28  #140 
"Gary"
May 2007
Overland Park, KS
11,813 Posts 
Yoyo confirmed that they do not work on cofactors > 139 digits per this post:
https://mersenneforum.org/showpost.p...postcount=2113 It appears that all reservations shown in the 1st post here are Yoyo reservations. Since the smallest factor here is 150 digits, I feel like all of those reservations can be removed. This actually explains something that I had been wondering about. I had noticed how some of the sameparity sequences would advance 1 index out of the blue and that those sequences were usually on bases that Yoyo had reserved and the cofactors cracked were always < 140 digits. This occurred even though the specific sameparity sequence was not shown as reserved, likely due to the assumption that Yoyo only worked opposite parity sequences. I would then wait for several weeks after the single index advancements to see if they were still being worked and noticed they never advanced again (due to a new cofactor at > 139 digits). Strongly suspecting that no ECM had been done on the next index, I then picked them up myself and confirmed as much. I often advanced them several more indexes and sometimes terminated one. The bottom line: Yoyo will work on sameparity sequences on bases that they have reserved but only if the cofactors are < 140 digits. Since the smallest cofactor that we have now on same parities is 136 digits, those advancements are fairly rare. I now know what to watch out for on Yoyo bases: Any sequence where the cofactor has reached >= 140 digits regardless of its parity. At that point, it is safe to assume that they have been released. 
20221211, 07:42  #141 
Oct 2006
Berlin, Germany
659 Posts 
You can see all sequences on which my volunteers are working here https://yafu.myfirewall.org/yafu/dow...tSeqences.html .
yoyo 
20221211, 09:33  #142  
"Gary"
May 2007
Overland Park, KS
11,813 Posts 
Quote:


20221211, 13:29  #143  
"Ed Hall"
Dec 2009
Adirondack Mtns
146F_{16} Posts 
Quote:


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