Il numero 643, seicentoquarantatré in Italiano, in Francese si dice six cent quarante-trois.
Il numero ordinale 643° in francese si dice six cent quarante-troisième.
634: six cent trente-quatre
635: six cent trente-cinq
636: six cent trente-six
637: six cent trente-sept
638: six cent trente-huit
639: six cent trente-neuf
640: six cent quarante
641: six cent quarante-et-un
642: six cent quarante-deux
644: six cent quarante-quatre
645: six cent quarante-cinq
646: six cent quarante-six
647: six cent quarante-sept
648: six cent quarante-huit
649: six cent quarante-neuf
650: six cent cinquante
651: six cent cinquante-et-un
652: six cent cinquante-deux