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Old 2022-01-20, 14:28   #3
BudgieJane's Avatar
"Jane Sullivan"
Jan 2011
Beckenham, UK

1001001102 Posts

Originally Posted by RichD View Post
Just a wild guess but you might have left over files laying around from a previous factoring attempt. Delete the files and start afresh.
I tried that, and it works.

I think I know what went wrong: when I was deleting the files, one ore more was held open by yafu-x64, but as far as I was aware yafu-x64 was not running. Eventually I found somewhere in the Win10 Task Manager that showed these files as open and which gave me the chance to close them, and I was then able to delete them.
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