The calculator obviously have a table with prime factors 2.997 and tries only to divide with those values. I know exactly why and that makes it even dumber. What the hell is the meaning of this? Another really dumb thing, and this one is an death sin - the prime factorization falsely report prime when the factors are > 1000. You can't even retain a spreadsheet when exit to do another things. I have searched the PDF manual and the web for instructions how you save a spreadsheet, only to come to the concussion that you can't. But the things the calculator are supposed to do, it doesn't do well. But it's all a sham! I did know that it was not a programmable calculator so I was prepared, even thou I don't think there are any excuses for not make a scientific calculator programmable these days. A few months back I purchased an Casio fx-991EX, mostly because it got good marks on this forum and it had a spreadsheet - something I could see the use for in a calculator.
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