[tex]\overline{abc} \: \: \vdots \: \: 2[/tex]
[tex] = > a \: \in \: \left\{1,2,3,4,5,6,7,8,9\right\}[/tex]
[tex] = > a \rightarrow 9 \: posibilitati[/tex]
[tex] = > b \: \in \: \left\{0,1,2,3,4,5,6,7,8,9\right\}[/tex]
[tex] = > b \rightarrow10 \: posibilitati[/tex]
[tex] = > c \: \in \: \left\{0,2,4,6,8\right\}[/tex]
[tex] = > c \rightarrow5 \: posibilitati[/tex]
=>Conform regulii produsului :
[tex]9 \times 10 \times 5 = 450 \: numere[/tex]
