Hi

I was just browsing around, searching for exotic number representations, and was suprised to find only really few different ways to represent numbers.

1. widely used integer and floating point.
2. Roman or Babylonian ( like MCXXV)
3. Double base Number systems
4. Residue Number Systems.

each has different advantages and disadvantages.

I did not find something based on prime numbers like
(1)=2
(1,0)=3
(1,0,0)=5
(1,0,1)=10
(1,1,0)=15
(2,1,0)=75
...
(x,y,z)=5^x*3^y*2^z


Does anybody know the prime numbers - number representation, what keyword can I search for?
Does anybody know other exotic number representations?


GMarco