Question

se dau nr abc unde a,b, c sunt nr prime care vrrifica egalitatea ab+53×ac+bc=2020.​

Answer 1

$\overline{ab} + 53 \cdot \overline{ac} + \overline{bc} = 2020 \equiv 54\overline{ac} +11b = 2020$

$\texttt {b este numar prim} \Rightarrow b = 2$

$\overline{54ac} = 1998 \Rightarrow \overline{ac} = 37 \Rightarrow \overline{abc} = 327$

$\texttt {sper ca te-am ajutat!}$