Il numero 731, settecentotrentuno in Italiano, in Inglese si dice seven hundred thirty-one.
Il numero ordinale 731° in inglese si dice seven hundred thirty-first.
722: seven hundred twenty-two
723: seven hundred twenty-three
724: seven hundred twenty-four
725: seven hundred twenty-five
726: seven hundred twenty-six
727: seven hundred twenty-seven
728: seven hundred twenty-eight
729: seven hundred twenty-nine
730: seven hundred thirty
732: seven hundred thirty-two
733: seven hundred thirty-three
734: seven hundred thirty-four
735: seven hundred thirty-five
736: seven hundred thirty-six
737: seven hundred thirty-seven
738: seven hundred thirty-eight
739: seven hundred thirty-nine
740: seven hundred forty