Solve the below problem:
Q: An article related to acrylic bone cements [Abboud, M. et al., PMMA-based composite materials with reactive ceramic fillers: IV. Radiopacifying particles embedded in PMMA beads for acrylic bone cements, J. Biomed. Mater. Res., 53(6), 728 (2000)] provides the following information on the PMMA matrix used in these cements: Mw = 295,000; Mw/Mn = 2.2. Calculate the number average degree of polymerization for the PMMA used in this study.