On Sun, Nov 21, 2021 at 1:20 PM Rob Cliffe via Python-list <python-list@python.org> wrote: > > > > On 21/11/2021 01:02, Chris Angelico wrote: > > > > If you have a number with a finite binary representation, you can > > guarantee that it can be represented finitely in decimal too. > > Infinitely repeating expansions come from denominators that are > > coprime with the numeric base. > > > > > Not quite, e.g. 1/14 is a repeating decimal but 14 and 10 are not coprime. > I believe it is correct to say that infinitely recurring expansions > occur when the denominator is divisible by a prime that does not divide > the base. > Rob Cliffe
True, my bad. I can't remember if there's a term for that, but your description is correct. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
