Survival function of the fragmented CMF correlated with the multiplicity of stellar systems formed at different mass intervals. Top:10⁴ random fragmentation draws (black lines) from the sample constituting the W43-MM2&MM3 CMF as presented in Pouteau et al. (2022, blue crosses) using the parameters ϕ = 1.0, ξ = −0.1, and q = 2. Fragmentation covers spatial scales from R₀ = 2500 AU down to R_stop = 219 AU. For visibility, only the first 100 Monte Carlo draws are shown. The solid red and dashed blue line represents the cIMF and the power-law distribution fit from Pouteau et al. (2022) respectively. The dashed red line represents the average of the slopes obtained from fitting each Monte Carlo draw, using masses M > 0.8 M_⊙. Bottom: distribution of the number of neighbours that a star of mass M possesses in different mass intervals (indicated above each plot). The mean value is indicated by the vertical dashed line.