1.
Let [t][t] be the greatest integer less than or equal to tt. Let AA be the set of all prime factors of 23102310 and f:AZf: A \rightarrow \mathbb{Z} be the function f(x)=[log2(x2)]f(x) = [\log_{2}(x^{2})]. The number of one-to-one functions from AA to the range of ff is