digits

[Logical Language Group <cbmvax!uunet!GREBYN.COM!cuvmb.cc.columbia.edu!lojbab>]

The Lojban digits are

1 pa
2 re
3 ci
4 vo
5 mu

6 xa (x is velar fricative ch of loch)
7 ze
8 bi
9 so

0 no

The 10 digits indeed differ in inital consonant, and in addition, 1-9
have a rotating cycle of vowels.

The 6 hex digits also have 6 diffiernet consonants, but overlap the basic
10, so we merely made sure they are in alphabetical order.  They also use
a rotation of 3 diphthongs/;

A dau
B fei
C gai
D jau
E rei
F vai

The are no voiced-unvoiced pairings or other situations where one phonetic
feature can change one digit to another.  Thus Lojban numbers should be]
fairly robust in noisy environments, though no one has really tested this.
A long time ago, John Cowan devised a backup system like the alpha/bravo/charly
system for the letters, which are much more alike - too much so, by design.
(all consonants are C+y, where y is pronounced as schwa (@):  by, cy, dy, etc.
Rick's idea is in this interest, but for numbers.  I encourage mnemonic
approaches to learning words, in any case.

lojbab