Re: FAA To Finally Ditch Floppy Disks & Win-95

On Sun, 29 Jun 2025 15:20:31 +0200, Andreas Eder wrote:

On Di 24 Jun 2025 at 01:34, Lawrence D'Oliveiro <ldo@nz.invalid> wrote:
 

On Mon, 23 Jun 2025 11:27:13 -0700, John Ames wrote:
>

... 60 is a number with a nice complement of small factors:
 
2 * 2 * 3 * 5
 
which makes it evenly divisible by:
 
2, 3, 4, 5, 6, 10, 12, 15, 20, 30

>
Base 30 (= 2 × 3 × 5) has exactly the same exact divisors.

 
Well, not quite - 20 ist *not* a divisor of 30.

20 ÷ 30 is exactly representable in base 30:

    k ÷ 10 = 0.k

(I should have said *prime* divisors. They are the only ones that matter.)