All but three of the remaining XYYXF composites have survived ECM to the t55 level (i.e. 18000 curves at B1=110000000). So any ECM work at lower B1 values is unlikely to find a factor.

There is an ongoing BOINC based ECM effort known as [URL="https://www.rechenkraft.net/yoyo/y_status_ecm.php"]Yoyo@Home[/URL] (look under the “XYYXF” tab). This work will shift to the t60 (42000 curves@B1=260M) later this month.

C196_127_95 is best factored by SNFS but ECM should be run first, either individually (it’s a huge effort in itself) or by Yoyo@Home.