Some identities between unitary minimal Virasoro characters at levels
m = 3, 4, 5 are shown to arise as a consequence of relations between A
rtin L-functions of different quadratic fields. The definitions and co
ncepts of number theory necessary to present the theta function identi
ties which can be derived from these relations are introduced. A new i
nfinite family of identities between Virasoro characters at level 3 an
d level m = 4a(2), for a odd and 1 + 4a(2) = a'(2)p, where p is prime
is obtained as a by-product.