Réponse:
[tex] {2}^{2} p \\ {r}^{2} {t}^{3} \\ {3}^{2} {n}^{2} \\ {1}^{3} {y}^{2} \\ {2}^{2} {\pi}^{2} \\ {d}^{3} {6}^{2} [/tex]
