Consider two identical springs each of spring constant k and negligible mass compared to the mass M as shown. Fig-1 shows one of them and Fig-2 shows their series combination. The ratios of time period of oscillation of the two SHM is $\raisebox{1ex}{${\text{T}}_{\text{b}}$}\!\left/ \!\raisebox{-1ex}{${\text{T}}_{\text{a}}$}\right.=\sqrt{x}$ , where value of x is______. (Round off to the Nearest Integer)