Are there primes other than 2 and 5 in which all the numbers would be composite?
I had the following thought when I was trying to fall asleep the other day:
The prime numbers 2 and 5 have the property that
I had the following thought when I was trying to fall asleep the other day: >>
The prime numbers 2 and 5 have the property that
they are factors of 10. I think anything beyond that is numerology.
In article <tpchci$3j024$1@dont-email.me>,
Doc O'Leary , <droleary.1022@2022.subsume.com> wrote:
I had the following thought when I was trying to fall asleep the other day:
The prime numbers 2 and 5 have the property that
they are factors of 10. I think anything beyond that is numerology.
That explains why they have that property, but shows nothing about
the case for other digits, which is a much more interesting problem.
I disagree. There’s nothing to “show” for other digits. It’s just math, and/or a quirk of our common base-10 representation. I mean,
feel free to explore a 3 * 7 = base-21 system to see what
“interesting” things may hold true. Nothing wrong with finding new
ways to count sheep. :-)
Sysop: | Keyop |
---|---|
Location: | Huddersfield, West Yorkshire, UK |
Users: | 325 |
Nodes: | 16 (3 / 13) |
Uptime: | 65:09:07 |
Calls: | 7,125 |
Calls today: | 3 |
Files: | 12,524 |
Messages: | 5,521,324 |